DEPARTMENT OF AGRICULTURE
Conservation Services Division
8 CCR 1206-2
RULES PERTAINING TO THE ADMINISTRATION AND ENFORCEMENT OF THE COLORADO NOXIOUS WEED ACT
Part 1	Definitions
1.1.	“Act” means the Colorado Noxious Weed Act, §§ 35-5.5-101 through 119, C.R.S. (2003).
1.2.	“Compliance waiver” means a written exemption granted to a local governing body or landowner by the Commissioner that releases the local governing body and/or landowner from certain obligations of eradication for a specific population of a List A or List B species.
1.3.	“Division” means the Colorado Division of Wildlife.
1.4.	“Elimination” means the removal or destruction of all emerged, growing plants of a population of List A or List B species designated for eradication by the Commissioner. It is the first step in achieving eradication and is succeeded by efforts to detect and destroy newly emerged plants arising from seed, reproductive propagule, or remaining root stock for the duration of the seed longevity for the particular species.
1.5.	“Infested acreage” means an area of land containing a noxious weed species, defined by the actual perimeter of the infestation as delineated by the canopy cover of the plants and excluding areas not infested.
1.6.	“Population” means a group of designated noxious weeds of the same species occupying a particular geographic region and capable of interbreeding.
1.7.	“Ordinary High Water mark” means that line on the shore of any intermittent or perennial stream or river established by the fluctuations of water and indicated by physical characteristics such as clear, natural line impressed on the bank, shelving, changes in the character of soil, destruction of terrestrial vegetation, the presence of litter and debris, or other appropriate means that consider the characteristics of the surrounding areas.
Part 2	General Provisions
2.1.	At any time, affected persons may suggest and the Commissioner may approve additional prescribed integrated management techniques not specified in these rules for the eradication, containment, or suppression of designated state noxious weeds. Such approval may be site-specific or broadly applicable. The Commissioner will publish a list on the Colorado Department of Agriculture website (http://www.ag.state.co.us/csd/weeds/Weedhome.html) of the herbicides, cultural techniques, and mechanical techniques approved for use under the specific state noxious weed management plans for List A and List B species.
2.2.	As a condition for granting a compliance waiver releasing a local governing body and/or landowner from certain obligations of eradication, the Commissioner may require the local governing body and/or landowner to implement other specified management actions with respect to a specific population.
2.3.	No recommendations or requirements in these rules concerning the use of herbicides are intended to contradict or supersede any other federal, state or local law regulating herbicide use. All use of herbicides to achieve any management objectives specified in these rules must comply with all applicable federal, state and local legal requirements, including but not limited to compliance with all directions for use, cautionary statements and any other requirements in the labeling of the particular herbicide product.
Part 3	List A Noxious Weed Species
3.1.	List A of the Colorado noxious weed list comprises the following noxious weed species:
African rue (Peganum harmala)
Camelthorn (Alhagi pseudalhagi)
Common crupina (Crupina vulgaris)
Cypress spurge (Euphorbia cyparissias)
Dyer's woad (Isatis tinctoria)
Elongated mustard (Brassica elongata)
Giant reed (Arundo donax)
Giant salvinia (Salvinia molesta)
Hydrilla (Hydrilla verticillata)
Japanese knotweed (Polygonum cuspidatum)
Giant knotweed (Polygonum sachalinense)
Bohemian knotweed (Polygonum x bohemicum
Meadow knapweed (Centaurea pratensis)
Mediterranean sage (Salvia aethiopis)
Medusahead (Taeniatherum caput-medusae)
Myrtle spurge (Euphorbia myrsinites)
Orange hawkweed (Hieracium aurantiacum)
Purple loosestrife (Lythrum salicaria)
Rush skeletonweed (Chondrilla juncea)
Sericea lespedeza (Lespedeza cuneata)
Squarrose knapweed (Centaurea virgata)
Tansy ragwort (Senecio jacobaea)
Yellow starthistle (Centaurea solstitialis)
3.2.	All populations of List A species in Colorado are designated by the Commissioner for eradication.
3.3.	It is a violation of these rules to allow any plant of any population of any List A species to produce seed or develop other reproductive propagules.
3.4.	Prescribed management techniques must be applied to every population of List A noxious weeds present in Colorado to achieve the following objectives:
A.	The plants of every population of List A species must be eliminated prior to seed development.
B.	Once all mature plants are eliminated, appropriate efforts must be made to detect and eliminate new plants arising from seed, reproductive propagule, or root stock for the duration of the seed longevity for the particular species.
C.	In order to ensure that seeds or other reproductive propagules are not produced or spread, any plant with flowers, seeds, or other reproductive propagules must be placed in sealed plastic bags and disposed of by:
1.	high intensity burning in a controlled environment that completely destroys seed viability;
2.	removal of plant materials to a solid waste landfill which covers refuse daily with six inches of soil or alternative material; or
3.	any other method approved by the Commissioner. 
3.5.	Within one year of detection, any local governing body with a population of any List A species must provide to the State Weed Coordinator mapping data pertinent to each population including:
A.	Species name
B.	Population location(s) including distribution and abundance
C.	Estimated infested acreage
3.6.	State Noxious Weed Management Plans for List A Noxious Weed Species
3.6.15.	Sericea lespedeza (Lespedeza cuneata). In addition to the requirements set forth in this Part 3 for the management of all List A species, the following conditions also apply for sericea lespedeza:
A.	The prescribed integrated management techniques are limited to the use of herbicides approved by the Commissioner and hand-pulling, digging, or other mechanical techniques approved by the Commissioner.
B.	Prescribed integrated management techniques do not include the use of: (1) any biocontrol agents or; (2) any herbicides, cultural techniques, or mechanical techniques other than those approved by the Commissioner.
C.	Seed longevity is estimated to be at least twenty years.
3.6.15 6.	Squarrose knapweed (Centaurea virgata). In addition to the requirements set forth in this Part 3 for the management of all List A species, the following conditions also apply for squarrose knapweed:
A.	The prescribed integrated management techniques are limited to the use of herbicides approved by the Commissioner, prescribed fire in conjunction with herbicide application, and hand-pulling, digging, or other mechanical techniques approved by the Commissioner.
B.	Prescribed integrated management techniques do not include the use of: (1) any biocontrol agents or; (2) any herbicides, cultural techniques, or mechanical techniques other than those approved by the Commissioner.
C.	Seed longevity is at least three years.
3.6.16 7.	Tansy ragwort (Senecio jacobaea). In addition to the requirements set forth in this Part 3 for the management of all List A species, the following conditions also apply for tansy ragwort:
A.	The prescribed integrated management techniques are limited to the use of herbicides approved by the Commissioner and hand-pulling, digging, or other mechanical techniques approved by the Commissioner.
B.	Prescribed integrated management techniques do not include the use of: (1) any biocontrol agents or; (2) any herbicides, cultural techniques, or mechanical techniques other than those approved by the Commissioner.
C.	Seed longevity is at least sixteen years.
3.6.17 8.	Yellow starthistle (Centaurea solstitialis). In addition to the requirements set forth in this Part 3 for the management of all List A species, the following conditions also apply for yellow starthistle:
A.	The prescribed integrated management techniques are limited to the use of herbicides approved by the Commissioner, prescribed fire in conjunction with herbicide application, and hand-pulling, digging, or other mechanical techniques approved by the Commissioner.
B.	Prescribed integrated management techniques do not include the use of: (1) any biocontrol agents or; (2) any herbicides, cultural techniques, or mechanical techniques other than those approved by the Commissioner.
C.	Seed longevity is at least ten years.
3.6.18.	Elongated mustard (Brassica elongata).  In addition to the requirements set forth in this Part 3 for the management of all List A species, the following conditions also apply for elongated mustard:
A.	The prescribed integrated management techniques are limited to the use of herbicides approved by the Commissioner, and hand-pulling, digging, or other mechanical techniques approved by the Commissioner.
B.	Prescribed integrated management techniques do not include the use of: (1) any biocontrol agents or; (2) any herbicides, cultural techniques, or mechanical techniques other than those approved by the Commissioner.
C.	Seed longevity is unknown.  Infested sites must be monitored for at least 10 years after the populations have been eliminated and treatments must be repeated when necessary to prevent flowering and development of seed.
3.6.19.	Giant reed (Arundo donax).  In addition to the requirements set forth in this Part 3 for the management of all List A species, the following conditions also apply for giant reed:
A.	The prescribed integrated management techniques are limited to the use of herbicides approved by the Commissioner, and hand-pulling, digging, or other mechanical techniques approved by the Commissioner.
B.	Prescribed integrated management techniques do not include the use of: (1) any biocontrol agents or; (2) any herbicides, cultural techniques, or mechanical techniques other than those approved by the Commissioner.
C.	Any efforts to physically remove plants must prevent fragmentation as stem fragments are considered plant propagules.
D.	Seed longevity is unknown.  Infested sites must be monitored for at least 10 years after the populations have been eliminated and treatments must be repeated when necessary to prevent flowering and development of seed.
3.6.20.	Japanese knotweed (Polygonum cuspidatum).  In addition to the requirements set forth in this Part 3 for the management of all List A species, the following conditions also apply for Japanese knotweed:
A.	The prescribed integrated management techniques are limited to the use of herbicides approved by the Commissioner, and hand-pulling, digging, or other mechanical techniques approved by the Commissioner.
B.	Prescribed integrated management techniques do not include the use of: (1) any biocontrol agents or; (2) any herbicides, cultural techniques, or mechanical techniques other than those approved by the Commissioner.
C.	Any efforts to physically remove plants must prevent fragmentation as stem fragments are considered plant propagules.
D.	Seed longevity is unknown.  Infested sites must be monitored for at least 10 years after the populations have been eliminated and treatments must be repeated when necessary to prevent flowering and development of seed.
3.6.21.	Giant knotweed (Polygonum sachalinense).  In addition to the requirements set forth in this Part 3 for the management of all List A species, the following conditions also apply for Giant knotweed:
A.	The prescribed integrated management techniques are limited to the use of herbicides approved by the Commissioner, and hand-pulling, digging, or other mechanical techniques approved by the Commissioner.
B.	Prescribed integrated management techniques do not include the use of: (1) any biocontrol agents or; (2) any herbicides, cultural techniques, or mechanical techniques other than those approved by the Commissioner.
C.	Any efforts to physically remove plants must prevent fragmentation as stem fragments are considered plant propagules.
D.	Seed longevity is unknown.  Infested sites must be monitored for at least 10 years after the populations have been eliminated and treatments must be repeated when necessary to prevent flowering and development of seed.
3.6.22.	Bohemian knotweed (Polygonum x bohemicum).  In addition to the requirements set forth in this Part 3 for the management of all List A species, the following conditions also apply for Bohemian knotweed:
A.	The prescribed integrated management techniques are limited to the use of herbicides approved by the Commissioner, and hand-pulling, digging, or other mechanical techniques approved by the Commissioner.
B.	Prescribed integrated management techniques do not include the use of: (1) any biocontrol agents or; (2) any herbicides, cultural techniques, or mechanical techniques other than those approved by the Commissioner.
C.	Any efforts to physically remove plants must prevent fragmentation as stem fragments are considered plant propagules.
D.	Seed longevity is unknown.  Infested sites must be monitored for at least 10 years after the populations have been eliminated and treatments must be repeated when necessary to prevent flowering and development of seed.
Part 4	List B Noxious Weed Species
4.1.	List B of the Colorado noxious weed list comprises the following noxious weed species:
Absinth wormwood (Artemisia absinthium)
Black henbane (Hyoscyamus niger)
Bouncingbet (Saponaria officinalis)
Bull thistle (Cirsium vulgare)
Canada thistle (Cirsium arvense)
Chinese clematis (Clematis orientalis)
Common tansy (Tanacetum vulgare)
Common teasel (Dipsacus fullonum)
Corn chamomile (Anthemis arvensis)
Cutleaf teasel (Dipsacus laciniatus)
Dalmatian toadflax, broad-leaved (Linaria dalmatica)
Dalmatian toadflax, narrow-leaved (Linaria genistifolia)
Dame's rocket (Hesperis matronalis)
Diffuse knapweed (Centaurea diffusa)
Eurasian watermilfoil (Myriophyllum spicatum)
Hoary cress (Cardaria draba)
Houndstongue (Cynoglossum officinale)
Jointed goatgrass (Aegilops cylindrica)
Leafy spurge (Euphorbia esula)
Mayweed chamomile (Anthemis cotula)
Moth mullein (Verbascum blattaria)
Musk thistle (Carduus nutans)
Oxeye daisy (Chrysanthemum leucanthemum)
Perennial pepperweed (Lepidium latifolium)
Plumeless thistle (Carduus acanthoides)
Quackgrass (Elytrigia repens)
Russian knapweed (Acroptilon repens)
Russian-olive (Elaeagnus angustifolia)
Salt cedar (Tamarix chinensis, T. parviflora, and T. ramosissima)
Scentless chamomile (Matricaria perforata)
Scotch thistle (Onopordum acanthium)
Scotch thistle (Onopordum tauricum)
Spotted knapweed (Centaurea maculosa)
Spurred anoda (Anoda cristata)
Sulfur cinquefoil (Potentilla recta)
Venice mallow (Hibiscus trionum)
Wild caraway (Carum carvi)
Yellow nutsedge (Cyperus esculentus)
Yellow toadflax (Linaria vulgaris)
4.2.	List B noxious weed species are species for which the Commissioner, in consultation with the state noxious weed advisory committee, local governments, and other interested parties, develops and implements state noxious weed management plans designed to stop the continued spread of these species. List B species must be managed in accordance with all the provisions of this Part 4, including any applicable state noxious weed management plans. Until a plan for a particular species is developed and implemented by rule, all persons are recommended to manage that species.
4.3.	Local governing bodies and other interested parties are encouraged to make special note of the distribution and abundance of Dames rocket, Russian-olive, common teasel, cutleaf teasel,Canada thistle, and quackgrass as the Commissioner will consult with the state noxious weed advisory committee, local governments, and other interested parties, in order to develop and implement state noxious weed management plans in 2010-2011 designed to stop the continued spread of these species. State noxious weed management plans for additional List B species will be developed in future years.
4.4.	It is a violation of these rules to allow any plant of any population of a List B species designated for eradication by the Commissioner in a state noxious weed management plan (Rules 4.7.1-4.7.23) to produce seed or develop other reproductive propagules after the time specified in the plan for elimination.
4.5.	Prescribed management techniques must be applied to every population of List B species designated for eradication by the Commissioner in a state noxious weed management plan (Rules 4.7.1-4.7.23) to achieve the following objectives:
A.	The plants of every population of List B species designated for eradication must be eliminated prior to seed development in the year specified.
B.	Any population that is discovered in areas designated for eradication subsequent to the year specified for elimination must be eliminated prior to the development of viable seed. If the population is discovered after seed development has occurred, then efforts must be made to minimize the dispersion of seed and elimination is required prior to seed development in the following year.
C.	Once all plants are eliminated, appropriate efforts must be made in subsequent years to detect and eliminate new plants arising from seed, reproductive propagule, or root stock prior to seed development for the duration of the seed longevity for the particular species.
D.	In order to ensure that seeds or other reproductive propagules are not produced or spread, any plant with flowers, seeds, or other reproductive propagules must be placed in sealed plastic bags and disposed of by:
1.	high intensity burning in a controlled environment that completely destroys seed viability;
2.	removal of plant materials to a solid waste landfill which covers refuse daily with six inches of soil or alternative material; or
3.	any other method approved by the Commissioner.
4.6.	Within one year of detection, any local governing body with a population of any List B species for which the Commissioner has developed and implemented a state noxious weed management plan must provide to the State Weed Coordinator mapping data pertinent to distribution and abundance of such species in a form prescribed by the State Weed Coordinator.
4.7.	State Noxious Weed Management Plans for List B Noxious Weed Species
4.7.4.	Spotted knapweed (Centaurea maculosa). In addition to the requirements set forth in this Part 4 for the management of all List B species, the following conditions also apply for spotted knapweed:
A.	Except as specified in Part 4.7.4D, elimination of all populations is required prior to seed development in 2006 in all Colorado counties except for Clear Creek, La Plata, and Summit Counties.
B.	Except as specified in Part 4.7.4D, elimination of all populations in Clear Creek and Summit Counties is required prior to seed development in 2008.
C.	Except as specified in Part 4.7.4D, elimination of all populations in La Plata County must be completed prior to seed development in 2006 for all land outside the boundaries of an area demarcated by State Highway 160 on the north, County Roads 141 and 136 on the east, a line drawn from East to West connecting County Road 136 where it joins State Highway 140 and the La Plata River, the La Plata River on the west from this line to its confluence with Cherry Creek, and Cherry Creek on the west until it meets State Highway 160. Except as specified in Part 4.7.4D, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 8).
D.	All populations in this state that are within 15 feet from the edge of any public road and any immediately adjacent area used for parking must be eliminated prior to seed development in 2005.
E.	The prescribed integrated management techniques for the eradication of disignated designated populations are limited to the use of herbicides approved by the Commissioner and hand-pulling, digging, or other mechanical techniques approved by the Commissioner.
F.	Prescribed integrated management techniques do not include the use of: (1) any biocontrol agents or; (2) any herbicides, cultural techniques, or mechanical techniques other than those approved by the Commissioner.
G.	Seed longevity is estimated to be at least fifteen years. Infested sites must be monitored for at least fifteen years after the populations have been eliminated and treatments must be repeated when necessary to prevent flowering and development of seed.
4.7.5.	Salt cedar (Tamarix chinensis, T. parviflora, and T. ramosissima). In addition to the requirements set forth in this Part 4 for the management of all List B species, the following conditions also apply for salt cedar:
A.	Elimination of all populations is required prior to seed development in 2006 in Alamosa, Conejos, Costilla, Jackson, Rio Grande, and Saguache Counties.
B.	Elimination of all populations in San Miguel and Montrose Counties must be completed prior to seed development in 2006 for all land within the watershed upstream from the confluence (38°12.327’N, 108°18.654’W) of Horsefly Creek and the San Miguel River (see Rule 4.8, Figure 9).
C.	Elimination of all populations in Eagle, Garfield, Grand, Routt, and Summit Counties must be completed prior to seed development in 2007 for all land within the Colorado River watershed upstream from the point at which the Colorado River crosses the Eagle/Garfield County line (39°37.474’N, 107°06.762’W) (see Rule 4.8, Figure 10).
D.	Elimination of all populations within the Republican River watershed is required prior to seed development in 2010 for all land outside the boundaries of an area demarcated by County Road 7, Longitude 102° 7’29 ”	 W, the southern boarder border of Yuma County, and US Highway 385. For all land within these boundaries, supression supression is the specified State management objective (see Rule 4.8, Figure 100).
E.	Elimination of all populations in Weld County is required prior to seed development in 2010.
F.	Elimination of all populations in Chaffee and Routt Counties.is required prior to seed development in 2011.
G.	Elimination of all populations in Montrose County must be completed prior to seed development in 2011 for all land within the watershed upstream from the intersection of State Highway 90 and the San Miguel River to the confluence of Horsefly Creek and the San Miguel River. (see Rule 4.8, Figure 147). 
H.	Elimination of all populations in San Miguel County must be completed prior to seed development in 2011 for all land within the Naturita Creek watershed from the headwaters to the point at which the Naturita Creek crosses the San Miguel/Montrose County line. (see Rule 4.8, Figure 148).
I.	The prescribed integrated management techniques for the eradication of designated populations are limited to the use of herbicides approved by the Commissioner and hand-pulling, digging, sawing, or other mechanical techniques approved by the Commissioner.
J.	Prescribed integrated management techniques do not include the use of: (1) any biocontrol agents or; (2) any herbicides, cultural techniques, or mechanical techniques other than those approved by the Commissioner.
K.	Seed longevity is less than one year.
4.7.17	Russian knapweed (Centaurea repens). In addition to the requirements set forth in this Part 4 for the management of all List B species, the following conditions also apply for Russian knapweed:
A.	Elimination of all populations is required prior to seed development in 2012 in all Colorado counties except for Archuleta, Boulder, Chaffee, Fremont, Kiowa, Larimer, Las Animas, Jefferson, Moffat, Morgan, Ouray, Pitkin, Pueblo, Saguache, and Weld Counties and those counties specified in Part 4.7.17P.
B.	Elimination of all populations in Archuleta County is required prior to seed development in 2012 for all land outside the boundaries of an area demarcated by Forest Service Road 662 on the north, Longitude 106° 56’13”W, and US Highway 84 on the west and of an area demarcated by Latitude 37° 3’48”N, Longitude 107° 18’44”W, and the southern and western borders of Archuleta County. Except as specified in Part 4.7.17Q and in Part 4.7.17R, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 168).
C.	Elimination of all populations in Boulder County is required prior to seed development in 2012 for all land outside the boundaries of an area demarcated by the northern, eastern, and southern borders of Boulder County, and US Highway 36 on the west. Except as specified in Part 4.7.17Q and in Part 4.7.17R, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 169).
D.	Elimination of all populations in Chaffee County is required prior to seed development in 2012 for all land outside the boundaries of an area demarcated by Latitude 38° 41’16”N, Longitude 105° 59’60”W, Latitude 38° 33’45”N, Longitude 105° 56’16”W, the eastern border of Chaffee County, Latitude 38° 29’58”N, and Longitude 106° 7’31”W. Except as specified in Part 4.7.17Q and in Part 4.7.17R, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 170).
E.	Elimination of all populations in Fremont County is required prior to seed development in 2012 for all land outside the boundaries of an area demarcated by US Highway 50 on the north, Longitude 105° 33’42”W, the southern border of Fremont County, and Longitude 105° 37’30”W and of an area demarcated by Tallahassee Creek, US Highway 50, and County Road 441B on the north, Fourmile Creek on the east, Grape Creek on the South, Latitude 38° 22’29”N, and Longitude 105°30’0”W and of an area demarcated by Latitude 38° 30’3”N, the eastern and southern borders of Fremont County, Hardscabble creek on the west, and Longitude 105° 3’46”W. Except as specified in Part 4.7.17Q and in Part 4.7.17R, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 171).
F.	Elimination of all populations in Kiowa County is required prior to seed development in 2012 for all land outside the boundaries of an area demarcated by County Road U on the north, County Road 33 on the east, County Roads N, 27, and M on the south, and County Roads 25.30, P, and H on the west. Except as specified in Part 4.7.17Q and in Part 4.7.17R, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 172).
G.	Elimination of all populations in Larimer County is required prior to seed development in 2012 for all land outside the boundaries of an area demarcated by the northern, eastern, and southern borders of Larimer County, US Highway 36 on the west, and Longitude 105° 22’33”W. Except as specified in Part 4.7.17Q and in Part 4.7.17R, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 173).
H.	Elimination of all populations in Las Animas County is required prior to seed development in 2012 for all land outside the boundaries of an area demarcated by Van Bremer Arroyo on the north, US Highway 350, County Road 54 on the north, County Roads 107, 48, 107.7, and 107 on the east, County Roads 40 and 40.9 on the south, and Longitude 104° 18’47”N. Except as specified in Part 4.7.17Q and in Part 4.7.17R, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 174).
I.	Elimination of all populations in Moffat County is required prior to seed development in 2012 for all land outside the boundaries of an area demarcated by the northern border of Moffat County, County Road 10N, State Highway 318 until it intersects with the Yampa River, the Yampa River, US Highway 40 on the south, and the western border of Moffat County and of an area demarcated the northern and eastern borders of Moffat County, Elkhead Creek, State Highway 13 and County Road 45 on the east, the southern border of Moffat County, County Roads 51, 32, 55, 17 on the west and US Highway 40, County Roads 7 and 183, and State Highway 13 on the west. Except as specified in Part 4.7.17Q and in Part 4.7.17R, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 175).
J.	Elimination of all populations in Morgan County is required prior to seed development in 2012 for all land outside the boundaries of an area demarcated by the Riverside Canal on the north until it intersects with State Highway 71, State Highway 71, County Roads EE.00, 34.00, and GG.00 on the north, the eastern border of Morgan County, US Highway 6, Interstate 76, and US Highway 34 on the south, and the western boarder of Morgan County. Except as specified in Part 4.7.17Q and in Part 4.7.17R, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 176).
K.	Elimination of all populations in Ouray County is required prior to seed development in 2012 for all land outside the boundaries of an area demarcated by the northern border of Ouray County, US Highway 550 on the east, State Highway 62 on the south, and Longitude 107° 52’31”W. Except as specified in Part 4.7.17Q and in Part 4.7.17R, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 177).
L.	Elimination of all populations in Pitkin County is required prior to seed development in 2012 for all land outside the boundaries of an area demarcated by the northern border of Pitkin County, Longitude 106° 48’45”W, Latitude 39° 11’14”N, and Longitude 107° 3’44”W. Except as specified in Part 4.7.17Q and in Part 4.7.17R, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 178).
M.	Elimination of all populations in Pueblo County is required prior to seed development in 2012 for all land outside the boundaries of an area demarcated by Latitude 38° 22’33”N, the eastern border of Pueblo County, Latitude 37° 56’14”N, Longitude 104° 30’4”W, Latitude 38° 11’10”N, and the western border of Pueblo County and of an area demarcated by State Highway 165 on the north, Interstate 25 on the east, the southern border of Pueblo County, and Longitude 104° 52’30”W. Except as specified in Part 4.7.17Q and in Part 4.7.17R, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 179).
N.	Elimination of all populations in Saguache County is required prior to seed development in 2012 for all land outside the boundaries of an area demarcated by Latitude 38° 15’1”N, Longitude 106° 48’39”W, the southern border of Saguache County, and Longitude 106° 14’58”W. Except as specified in Part 4.7.17Q and in Part 4.7.17R, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 180).
O.	Elimination of all populations in Weld County is required prior to seed development in 2012 for all land outside the boundaries of an area demarcated by County Road 136 on the north, County Road 105 on the east, County Road 122 on the south, and County Road 390 on the west and of an area demarcated by US Interstate 76 on the north, Market Street, Woodward Avenue and County Road 59 on the east, and State Highway 52 on the south and of an area demarcated by State Highway 52 on the north, US Interstate 25 on the east, and the southern and western borders of Weld County and of an area demarcated by County Road 50 on the north, County Road 17 on the east, County Road 34 on the south, and the western border of Weld County and of an area demarcated by the Cache La Poudre River on the north, US Highway 85 on the east, 37th Street on the south, and 71st street on the west and of an area demarcated by County Road 90 on the north, County Roads 49 and 51 on the east, County Road 74 on the south and Weld County Road 39 on the west. Except as specified in Part 4.7.17Q and in Part 4.7.17R, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 181).
P.	Except as specified in Part 4.7.17Q and in Part 4.7.17R, suppression is the specified State management objective for all populations in Alamosa, Conejos, Delta, Eagle, Garfield, Gunnison, La Plata, Mesa, Montezuma, Rio Grande, and San Miguel Counties.
Q.	All populations in this state that are within 15 feet from the edge of any public road and any immediately adjacent area used for parking must be eliminated prior to seed development in 2012. 
R.	All populations in this state that are within the area from the center of any intermittent or perennial stream or river to 15 feet beyond the ordinary high water mark on both banks must be eliminated prior to seed development in 2012.
S.	The prescribed integrated management techniques for the eradication of designated populations are limited to the use of herbicides approved by the Commissioner and hand-pulling, digging, mowing or other mechanical techniques approved by the Commissioner.
T.	Prescribed integrated management techniques do not include the use of: (1) any biocontrol agents or; (2) any herbicides, cultural techniques, or mechanical techniques other than those approved by the Commissioner.
U.	Seed longevity is estimated to be at least five years. Infested sites must be monitored for at least five years after the populations have been eliminated and treatments must be repeated when necessary to prevent flowering and development of seed.
4.7.22	Scentless chamomile (Matricaria perforata). In addition to the requirements set forth in this Part 4 for the management of all List B species, the following conditions also apply for Scentless chamomile:
A.	Except as specified in Part 4.7.22I, elimination of all populations is required prior to seed development in 2015 in all Colorado counties except for Delta, Gilpin, Gunnison, Mesa and Park Counties and those counties specified in Part 4.7.22G.
B.	Except as specified in Part 4.7.22I, elimination of all populations in Delta County is required prior to seed development in 2015 for all land outside the boundaries of an area demarcated by the northern and eastern borders of Delta County, State Highway 133 and State Highway 92 on the south, and State Highway 65 on the west. Except as specified in Part 4.7.22H and Part 4.7.22I, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 204).
C.	Except as specified in Part 4.7.22I, elimination of all populations in Gilpin County is required prior to seed development in 2015 for all land outside the boundaries of an area demarcated by Latitude 39°48’45”N, and the eastern and southern borders of Gilpin County. Except as specified in Part 4.7.22H and Part 4.7.22I, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 205).
D. 	Except as specified in Part 4.7.22I, elimination of all populations in Gunnison County is required prior to seed development in 2015 for all land outside the boundaries of an area demarcated by the northern and eastern border of Gunnison County, US Highway 50 on the south until it transects with the southern border of Gunnison County, the southern border of Gunnison county, US Highway 50 on the south, and the western border of Gunnison County. Except as specified in Part 4.7.22H and Part 4.7.22I, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 206).
E.	Except as specified in Part 4.7.22I, elimination of all populations in Mesa County is required prior to seed development in 2015 for all land outside the boundaries of an area demarcated by the northern, eastern, and southern borders of Mesa County, and by Longitude 108°11’14”W. Except as specified in Part 4.7.22H and Part 4.7.22I, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 207).
F.	Except as specified in Part 4.7.22I, elimination of all populations in Park County is required prior to seed development in 2015 for all land outside the boundaries of an area demarcated by the northern and eastern borders of Park County, Latitude 39°11’3”N, and the western border of Park County. Except as specified in Part 4.7.22H and Part 4.7.22I, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 208).
G.	Except as specified in Part 4.7.22H and Part 4.7.22I, suppression is the specified State management objective for all populations in Clear Creek, Eagle, Grand, Gunnison, Jefferson, Lake, Pitkin, and Summit Counties.
H.	All populations in this state that are within 15 feet from the edge of any public road and any immediately adjacent area used for parking must be eliminated prior to seed development in 2015.
I.	All populations in this state that are within the area from the center of any intermittent or perennial stream or river to 15 feet beyond the ordinary high water mark on both banks must be eliminated prior to seed development in 2016.
J.	The prescribed integrated management techniques for the eradication of designated populations are limited to the use of herbicides approved by the Commissioner and hand-pulling, digging, or other mechanical techniques approved by the Commissioner.
K.	Prescribed integrated management techniques do not include the use of: (1) any biocontrol agents or; (2) any herbicides, cultural techniques, or mechanical techniques other than those approved by the Commissioner.
L.	Seed longevity is estimated to be up to ten years. Infested sites must be monitored for at least ten years after the populations have been eliminated and treatments must be repeated when necessary to prevent flowering and development of seed.

4.7.24	Common teasel (Dipsacus fullonum). In addition to the requirements set forth in this Part 4 for the management of all List B species, the following conditions also apply for common teasel:
A.	Elimination of all populations is required prior to seed development in 2014 in all Colorado counties except for Adams, Arapahoe, Boulder, Chaffee, El Paso, Jefferson, Larimer, Logan, Pueblo and Weld and those counties specified in Part 4.7.24L.
B.	Elimination of all populations in Adams County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by the northern border of Adams County, Hayesmount Road on the east, and the southern and western borders of Adams County. Except as specified in Part 4.7.24M and Part 4.7.24N, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 223).
C.	Elimination of all populations in Arapahoe County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by the northern border of Arapahoe County, State Highway 470 on the east, and the southern and western borders of Arapahoe County. Except as specified in Part 4.7.24M and Part 4.7.24N, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 224).
D.	Elimination of all populations in Boulder County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by the northern, eastern, and southern border of Boulder County, and State Highway 93 and US Highway 36 on the west. Except as specified in Part 4.7.24M and Part 4.7.24N, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 225).
E.	Elimination of all populations in Chaffee County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by Latitude 38°37'32.524"N, the eastern border of Chaffee County, Latitude 38°30'2.288"N, and Longitude 106°11'20.411"W. Except as specified in Part 4.7.24M and Part 4.7.24N, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 226).
F.	Elimination of all populations in El Paso County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by the northern border of El Paso County, Interstate 25 on the east. State Highway 24 until it intersects with Fountain Creek, Fountain Creek on the east and the southern and western border of El Paso County. Except as specified in Part 4.7.24M and Part 4.7.24N, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 227).
G.	Elimination of all populations in Jefferson County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by the northern and eastern borders of Jefferson County, County Road 97 and US Highway 285 on the south, and the western border of Jefferson County. Except as specified in Part 4.7.24M and Part 4.7.24N, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 228).
H.	Elimination of all populations in Larimer County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by Latitude 40°41'17.811"N, the eastern and southern borders of Larimer County, and Longitude 105°15'8.446"W. Except as specified in Part 4.7.24M and Part 4.7.24N, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 229).
I.	Elimination of all populations in Logan County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by US Highway 6 north to Sterling, then U.S. Highway 138 to the eastern border of Logan County, Interstate 76, and the southern border of Logan County. Except as specified in Part 4.7.24M and Part 4.7.24N, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 230).
J.	Elimination of all populations in Pueblo County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by the northern border of Pueblo County, the eastern border of Pueblo County, Latitude 38°7'28.008"N, Longitude 104°56'13.356"W, and the southern and western borders of Pueblo County. Except as specified in Part 4.7.24M and Part 4.7.24N, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 231).
K.	Elimination of all populations in Weld County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by Latitude 40°26'17.543"N, Longitude 104°22'28.738"W, Latitude 40°18'45.522"N, US Highway 85, and the southern and western borders of Weld County. Except as specified in Part 4.7.24M and Part 4.7.24N, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 232).
L.	Except as specified in Part 4.7.24M and Part 4.7.24N, suppression is the specified State management objective for all populations in Broomfield and Denver Counties.
M.	All populations in this state that are within 15 feet from the edge of any public road and any immediately adjacent area used for parking must be eliminated prior to seed development in 2014.
N.	All populations in this state that are within the area from the center of any intermittent or perennial stream or river to 15 feet beyond the ordinary high water mark on both banks must be eliminated prior to seed development in 2014.
4.7.25	Cutleaf teasel (Dipsacus laciniatus). In addition to the requirements set forth in this Part 4 for the management of all List B species, the following conditions also apply for cutleaf teasel:
A.	Elimination of all populations is required prior to seed development in 2014 in all Colorado counties except for Adams, Jefferson, and Weld and those counties specified in Part 4.7.25E.
B.	Elimination of all populations in Adams County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by the northern border of Adams County, Hayesmount Road on the east, and the southern and western borders of Adams County. Except as specified in Part 4.7.25F and Part 4.7.25G, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 233).
C.	Elimination of all populations in Jefferson County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by the northern and eastern borders of Jefferson County, County Road 97 and US Highway 285 on the south, and the western border of Jefferson County. Except as specified in Part 4.7.25F and Part 4.7.25G, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 234).
D.	Elimination of all populations in Weld County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by Latitude 40°26'17.543"N, Longitude 104°22'28.738"W, Latitude 40°18'45.522"N, US Highway 85, and the southern and western borders of Weld County. Except as specified in Part 4.7.25F and Part 4.7.25G, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 235).
E.	Except as specified in Part 4.7.25F and Part 4.7.25G, suppression is the specified State management objective for all populations in Broomfield and Denver Counties.
F.	All populations in this state that are within 15 feet from the edge of any public road and any immediately adjacent area used for parking must be eliminated prior to seed development in 2014.
G.	All populations in this state that are within the area from the center of any intermittent or perennial stream or river to 15 feet beyond the ordinary high water mark on both banks must be eliminated prior to seed development in 2014.
4.7.26	Dame’s rocket (Hesperis matronalis). In addition to the requirements set forth in this Part 4 for the management of all List B species, the following conditions also apply for dame’s rocket:
A.	Elimination of all populations is required prior to seed development in 2014 in all Colorado counties except for Adams, Boulder, Denver, Larimer, Logan, Mesa, Moffat, Pueblo, and Summit and those counties specified in Part 4.7.26K.
B.	Except as specified in Parts 4.7.26L and Part 4.7.26M, elimination of all populations in Logan County is required prior to seed development in 2015.
C.	Except as specified in Parts 4.7.26L and Part 4.7.26M, elimination of all populations in Moffat County is required prior to seed development in 2016.
D.	Elimination of all populations in Adams County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by the northern border of Adams County, Longitude 104°48'32.078"W, and the southern and western border of Adams County. Except as specified in Part 4.7.26L and Part 4.7.26M, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 236).
E.	Elimination of all populations in Boulder County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by northern, eastern, and southern borders of Boulder County and State Highway 72 and State Highway 7 north of the junction with State Highway 72 north to the county line, on the west. Except as specified in Part 4.7.26L and Part 4.7.26M, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 237).
F.	Elimination of all populations in Denver County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by northern border of Denver County, Chambers Road on the east, and the southern and western borders of Denver County. Except as specified in Part 4.7.26L and Part 4.7.26M, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 238).
G.	Elimination of all populations in Larimer County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by Latitude 40°45'8.026"N, and the eastern, southern and western border of Larimer County. Except as specified in Part 4.7.26L and Part 4.7.26M, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 239).
H.	Elimination of all populations in Mesa County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by the western and northern borders of Mesa County, Longitude 108°18'37.128"W until it intersects with the southern border of Mesa County, the southern border until it intersects with the Gunnison River, the Gunnison River, and Latitude 39°3'33.868"N. Except as specified in Part 4.7.26L and Part 4.7.26M, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 240).
I.	Elimination of all populations in Pueblo County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by Latitude 38°7'33.068"N, Longitude 104°52'32.32"W, and the southern and western border of Pueblo County. Except as specified in Part 4.7.26L and Part 4.7.26M, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 241).
J.	Elimination of all populations in Summit County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by Latitude 39°41'5.354"N, Longitude 106°0'1.095"W, the southern border of Summit county, State Highway 91 and Interstate 70, and Longitude 106°7'32.266"W. Except as specified in Part 4.7.26L and Part 4.7.26M, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 242).
K.	Except as specified in Parts 4.7.26L and Part 4.7.26M, suppression is the specified State management objective for all populations in Broomfield and Jefferson Counties.
L.	All populations in this state that are within 15 feet from the edge of any public road and any immediately adjacent area used for parking must be eliminated prior to seed development in 2014.
M.	All populations in this state that are within the area from the center of any intermittent or perennial stream or river to 15 feet beyond the ordinary high water mark on both banks must be eliminated prior to seed development in 2014.
4.7.27	Jointed goatgrass (Aegilops cylindrica). In addition to the requirements set forth in this Part 4 for the management of all List B species, the following conditions also apply for jointed goatgrass:
A.	Elimination of all populations is required prior to seed development in 2014 in all Colorado counties except for Archuleta, Boulder, Broomfield, Delta, Denver, Dolores, Jefferson, Las Animas, Moffat, Montezuma, Pueblo, and Routt and those counties specified in Part 4.7.27N. 
B.	Elimination of all populations in Archuleta County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by  Latitude 37°15'1.38"N, Longitude 107°14'57.993"W, Latitude 7°3'49.422"N, Longitude 107°7'30.054"W, the southern border of Archuleta County, and Longitude 107°18'46.152"W. Except as specified in Part 4.7.27O, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 243).
C.	Elimination of all populations in Boulder County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by the northern, eastern, and southern borders of Boulder County, and Longitude 105°18’46.968”W. Except as specified in Part 4.7.27O, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 244).
D.	Elimination of all populations in Broomfield County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by the northern border of Broomfield County, Sheridan Boulevard on the east, and the southern and western border of Broomfield County. Except as specified in Part 4.7.27O, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 245).
E.	Elimination of all populations in Delta County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by Latitude 39°0'0.22"N, Longitude107°52'31.684"W. Latitude 38°52'30.716"N, and Longitude 107°56'17.69"W. Except as specified in Part 4.7.27O, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 246).
F.	Elimination of all populations in Denver County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by the northern border of Denver County, Havana Street and Havana Way on the east, and the southern and western border of Denver County. Except as specified in Part 4.7.27O, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 247).
G.	Elimination of all populations in Dolores County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by the northern border of Dolores County, the Dolores River on the east, and the southern and western border of Dolores County. Except as specified in Part 4.7.27O, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 248).
H.	Elimination of all populations in Jefferson County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by the northern and eastern borders of Jefferson County, County Road 97 and US Highway 285 on the south, and the western border of Jefferson County Except as specified in Part 4.7.27O, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 249).
I.	Elimination of all populations in Las Animas County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by the northern, eastern, and southern border of Las Animas County and Longitude 103°15'7.862"W . Except as specified in Part 4.7.27O, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 250).
J.	Elimination of all populations in Moffat County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by Latitude 40°33'45.731"N, the eastern border of Moffat County, Latitude 40°26'15.46"N, and Longitude 107°45'5.875"W. Except as specified in Part 4.7.27O, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 251).
K.	Elimination of all populations in Montezuma County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by the northern border of Montezuma County, Longitude 108°37'11.445"W, Latitude 37°29'58.16"N, and the western border of Montezuma County. Except as specified in Part 4.7.27O, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 252).
L.	Elimination of all populations in Pueblo County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by Latitude 38°11'16.617"N, Longitude 104°37'30.986"W, and the southern and western border of Pueblo County. Except as specified in Part 4.7.27O, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 253).
M.	Elimination of all populations in Routt County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by State Highway 40 on the north, County Road 51 on the east and south, and County Road 37 and Shelton Lane on the west. Except as specified in Part 4.7.27O, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 254).
N.	Except as specified in Part 4.7.27O, suppression is the specified State management objective for all populations in Baca, Garfield, La Plata, Logan, Mesa, Montrose, Ouray, Phillips, Otero, San Miguel, and Yuma Counties.
O.	All populations in this state that are within 15 feet from the edge of any public road and any immediately adjacent area used for parking must be eliminated prior to seed development in 2014.
4.7.28	Moth mullein (Verbascum blattaria). In addition to the requirements set forth in this Part 4 for the management of all List B species, the following conditions also apply for moth mullein:
A.	Elimination of all populations is required prior to seed development in 2014 in all Colorado counties except for Boulder, Larimer, and Pueblo and those counties specified in Part 4.7.28E.
B.	Elimination of all populations in Boulder County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by the northern, eastern, and southern border of Boulder County and Longitude 105°18'49.647"W. Except as specified in Part 4.7.28F, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 255).
C.	Elimination of all populations in Larimer County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by State Highway 34 on the north, State Highway 287 on the east, the southern border of Larimer County, and State Highway 36 on the west. Except as specified in Part 4.7.28F, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 256).
D.	Elimination of all populations in Pueblo County is required prior to seed development in 2014 for all land outside the boundaries of an area demarcated by State Highway 165 on the north, Interstate 25 on the east, and the southern and western border of Pueblo County. Except as specified in Part 4.7.28F, for all land within these boundaries, suppression is the specified State management objective (see Rule 4.8, Figure 257).
E.	Except as specified in Part 4.7.28F, suppression is the specified State management objective for all populations in Broomfield, Chaffee, and Lake Counties.
F.	All populations in this state that are within 15 feet from the edge of any public road and any immediately adjacent area used for parking must be eliminated prior to seed development in 2014.
4.8.	Figures 1 – 222 257 (Figure 193 is purposely omitted.)

Figure 7

Part 5	List C Noxious Weed Species
5.1.	List C of the Colorado noxious weed list comprises the following noxious weed species:
Bulbous bluegrass (Poa bulbosa)
Chicory (Cichorium intybus)
Common burdock (Arctium minus)
Common mullein (Verbascum thapsus)
Common St. Johnswort (Hypericum perforatum)
Downy brome (Bromus tectorum) 
Field bindweed (Convolvulus arvensis)
Halogeton (Halogeton glomeratus)
Johnsongrass (Sorghum halepense)
Perennial sowthistle (Sonchus arvensis)
Poison hemlock (Conium maculatum)
Puncturevine (Tribulus terrestris)
Puncturevine (Tribulus terrestris)
Redstem filaree (erodium Erodium cicutarium)
Velvetleaf (Abutilon theophrasti)
Wild proso millet (Panicum miliaceum)
5.2.	List C noxious weed species are species for which the Commissioner, in consultation with the state noxious weed advisory committee, local governments, and other interested parties, will develop and implement state noxious weed management plans designed to support the efforts of local governing bodies to facilitate more effective integrated weed management on private and public lands. The goal of such plans will not be to stop the continued spread of these species but to provide additional education, research, and biological control resources to jurisdictions that choose to require management of List C species.
Part 6	Watch List Species
6.1	The Watch List is comprised of the following species:
Asian mustard  (Brassica tournefortii)
Baby's breath  (Gypsophila paniculata)
Bathurst burr, Spiney cocklebur  (Xanthium spinosum)
Common bugloss  (Anchusa officinalis)
Common reed  (Phragmites australis)
Flowering rush  (Butomus umbellatus)
Hairy willow-herb  (Epilobium hirsutum)
Himalayan blackberry  (Rubus armeniacus)
Japanese blood grass/cogongrass  (Imperata cylindrical)
Meadow hawkweed  (Hieracium Caespitosum)
Onionweed  (Asphodelus fistulosus)
Pampas grass	(Cortideria jubata)
Scotch broom  (Cytisus scoparius)
Sericea lespedeza (Lespedeza cuneata)
Swainsonpea  (Sphaerophysa salsula)
Syrian Beancaper  (Zygophyllum fabago)
Water hyacinth  (Eichhornia crassipes)
Water lettuce  (Pistia stratiotes)
White bryony  (Bryonia alba)
Woolly Distaff Thistle  (Carthamus lanatus)
6.2	Watch List weed species are species for which the Commissioner, in consultation with the state noxious weed advisory committee, local governments, and other interested parties, has determined to pose a potential threat to the agricultural productivity and environmental values of the lands of the state. The Watch List is intended to serve advisory and educational purposes only. Its purpose is to encourage the identification and reporting of these species to the Commissioner in order to facilitate the collection of information to assist the Commissioner in determining which species should be designated as noxious weeds. The Commissioner may place a plant species on the Watch List if any of the following are present:
6,2,1.	The plant species is not known to occur in the state, but its noxious characteristics are recognized by another state or states in the region.
6.2.2	The plant species is not known to occur in the state, but has been found to exhibit noxious characteristics in agricultural lands and/or native plant communities similar to those found in Colorado.
6.2.3.	The plant species with suspected noxious qualities as determined by the use of a plant assessment process is present in the state but its distribution and effect on agricultural and natural lands is undetermined at this time.
6.3	Once the noxious characteristics and distribution of plant species on the Watch List are better known, the Commissioner, in consultation with the state noxious weed advisory committee, local governments, and other interested parties, may act to place a species on List A or List B, or may remove it from the Watch List.
Part 7 6 	Compliance Waiver
7 6.1.	Local governing bodies and landowners with any population of any List A species or population of any List B species designated for eradication may be eligible for a compliance waiver granted by the Commissioner.
7 6.2.	To apply for a compliance waiver, local governing bodies or landowners must submit a written petition to the State Weed Coordinator via mail (Colorado Department of Agriculture, 700 Kipling Street, Suite 4000, Lakewood, CO 80215-8000), fax (303-239-4125), or email (csdcomments@ag.state.co.us with “Attention: noxious weed petition” in the subject line). The Department will only consider a petition for waiver during the growing season of the target weed when the extent of the problem can be properly evaluated at the site for which the petition is submitted. The petition should provide specific information pertinent to the reevaluation of eradication as the appropriate management objective for a specified geographic region.
7 6.3.	The Commissioner will evaluate petitions using the following criteria:
A.	The known distribution of the weed species in the specified geographic region;
B.	The feasibility of current control technologies to achieve eradication of the population;
C.	The cost of carrying out eradication as part of statewide weed management plan; and
D.	Any other site-specific information that establishes eradication is not feasible for a specific population in a specified geographic region.
Petitioners must address these criteria and explain specifically what conditions exist that establish that eradication is not a viable management objective.
7 6.4.	The Commissioner will grant or deny a petition within fifteen business days of receiving it.
7 6.5.	The Commissioner may revoke a compliance waiver at any time if the information provided in the petition was incomplete or inaccurate, or if conditions change such that eradication becomes a viable management objective.
Part 8 7	Statements of Basis, Specific Statutory Authority and Purpose
8 7.1.	February 11, 2004 – Effective May 3, 2004
Statutory Authority
These permanent rules are adopted by the Commissioner of Agriculture pursuant to his authority under the Colorado Noxious Weed Act, §§ 35-5.5-108 and 115, C.R.S. (2003).
Purpose 
The purpose of these permanent rules is to: (1) repeal all of the existing permanent rules for the administration and enforcement of the Colorado Noxious Weed Act, §§ 35-5.5-101 through 119, C.R.S. (2003), currently published at 8 C.C.R. 1203-15 (including the Statement of Basis, Purpose and Statutory Authority as well as Rules 1 through 3) and; (2) replace the current permanent rules with new permanent rules which implement the Colorado Noxious Weed Act as amended by the General Assembly in its 2003 regular session. Specifically, the purposes of these new permanent rules are to designate state noxious weeds, classify state noxious weeds into three categories (List A, B, and C), develop and implement state noxious weed management plans for List A noxious weed species, prescribe integrated management techniques to achieve eradication of List A species, and provide a process for granting compliance waivers to local governing bodies and landowners in order to develop and implement a coordinated, statewide effort to stop the spread of noxious weeds and mitigate their impacts to agriculture and the environment.
Factual and Policy Issues
The factual and policy issues encountered in the proposal of these permanent rules are as follows:
1.	Several million acres of Colorado are infested with invasive non-indigenous plants that are continuing to spread to uninfested lands and increase in abundance.
2.	A number of these species, designated as state noxious weeds, aggressively invade or are detrimental to economic crops or native plant communities, are poisonous to livestock, are carriers of detrimental insects, diseases, or parasites, or are detrimental, directly or indirectly, to the environmentally sound management of natural or agricultural systems.
3.	Noxious weeds are a present threat to the economic and environmental value of the lands of the state of Colorado and it is a matter of statewide importance that the governing bodies of counties and municipalities manage such weeds in a coordinated manner across the state. Lack of such coordination makes weed management efforts unnecessarily costly and limits the effectiveness of public and private efforts to control such noxious weeds.
4.	A broad array of public and private organizations support efforts to develop and implement a coordinated, statewide effort to stop the spread of noxious weeds.
5.	Classifying designated noxious weeds into specific management categories will provide a means to focus public and private resources strategically and in a cost-effective manner.
6.	By eradicating rare noxious weed species quickly (List A), these species can be prevented from establishing permanent populations in Colorado from which they will spread to harm the agricultural and environmental values of the lands of Colorado.
7.	It is important that local governing bodies and affected landowners apply integrated management techniques that will achieve the specified management objectives, particularly for eradication. Some techniques are more effective than others (prescribed) and some techniques are likely to be ineffective or contribute to the spread of the weed species (not prescribed). Prescribing integrated management techniques to achieve specified management objectives will help landowners achieve management objectives such as eradication in a timely manner while limiting environmental damage, effort, and cost.
8.	By stopping the spread of well-established species (List B), the values of uninfested lands for agriculture or the environment can be protected and the costs of land management to private and public landowners can be limited or reduced.
9.	By educating the public about improved management for widespread species (List C), the harm associated with these species can be reduced and such efforts can be made more cost-effective for many citizens.
10.	To accomplish the goals associated with List A (statewide eradication) and List B (halted spread) it is necessary to develop and implement statewide plans to coordinate appropriate actions at the private, local, state, and federal levels. Without such plans, it will be difficult to focus public and private resources strategically and in a cost-effective manner to achieve these goals.
11.	In order to provide flexibility to respond to changing circumstances with respect to the distribution of weed populations, it is important to provide the state, local governing bodies, and landowners with a process to amend the requirement to eradicate a particular noxious weed. Without such a compliance waiver process, these rules may become unnecessarily burdensome.
12.	The absence of rules to implement a coordinated statewide effort to manage noxious weeds results in increased management costs to public and private interests, a reduction in the effectiveness of individual efforts, and the continued loss of agricultural and environmental values to the invasion of noxious weeds.
8 7.2.	March 4, 2005 – Effective May 2, 2005
Statutory Authority
These amendments to the rules are adopted by the Commissioner of Agriculture pursuant to his authority under the Colorado Noxious Weed Act, §§ 35-5.5-108 and 115, C.R.S. (2004).
Purpose
The purposes of these amendments to the rules are to: (1) designate additional species of noxious weeds for inclusion in the current categories (Lists A, B, C) listed in Parts 3, 4 and 5 of the existing Rules; (2) reclassify some of the currently listed noxious weeds to different categories; (3) develop and implement new state noxious weed management plans for additional species listed for statewide eradication (List A); (4) develop and implement state noxious weed management plans for selected List B species and; (5) identify priority List B species, among other possible List B species, for which the Commissioner intends to develop and implement state noxious weed management plans.
Factual Basis
The factual and policy issues encountered in the proposal of these amendments to the rules are as follows:
1.	It is necessary to periodically adjust the state noxious weed list to address emerging plant pest threats as they become known to the state.
2.	The current rules pertaining to the administration and enforcement of the Colorado Noxious Weed Act state that the Commissioner will develop and implement state noxious weed management plans for selected List B species.
3.	State noxious weed management plans are necessary in order to coordinate appropriate actions at the private, local, state, and federal levels that will halt the continued spread of these List B species.
4.	The proposed plans have been developed in consultation with the state noxious weed advisory committee, local governments, and other interested parties.
8 7.3.	March 9, 2006 – Effective May 30, 2006
Statutory Authority
These amendments to the rules are adopted by the Commissioner of Agriculture pursuant to his authority under the Colorado Noxious Weed Act, §§ 35-5.5-108 and 115, C.R.S. (2005).
Purpose
The purposes of these amendments to the rules are to: (1) develop and implement state noxious weed management plans for selected List B species and (2) identify priority List B species, among other possible List B species, for which the Commissioner intends to develop and implement state noxious weed management plans. The rule will also be moved to the Conservation Services Division section of the CCR and renumbered to 8 CCR 1206-2 to reflect a reorganization in the Colorado Department of Agriculture moving the noxious weed program to this division.
Factual Basis
The factual and policy issues encountered in the proposal of these amendments to the rules are as follows:
1.	The current rules pertaining to the administration and enforcement of the Colorado Noxious Weed Act state that the Commissioner will develop and implement state noxious weed management plans for selected List B species.
2.	State noxious weed management plans are necessary in order to coordinate appropriate actions at the private, local, state, and federal levels that will halt the continued spread of these List B species.
3.	The proposed plans have been developed in consultation with the state noxious weed advisory committee, local governments, and other interested parties.
8 7.4.	May 3, 2007 – Effective July 1, 2007
Statutory Authority
These amendments to the rules are adopted by the Commissioner of Agriculture pursuant to his authority under the Colorado Noxious Weed Act, §§ 35-5.5-108 and 115, C.R.S. (2005).
Purpose
The purposes of these amendments to the rules are to: (1) develop and implement state noxious weed management plans for selected List B species, (2) revise existing state noxious weed management plans for selected List B species, and (3) identify priority List B species, among other possible List B species, for which the Commissioner intends to develop and implement state noxious weed management plans.
Factual Basis
The factual and policy issues encountered in the proposal of these amendments to the rules are as follows:
1.	The current rules pertaining to the administration and enforcement of the Colorado Noxious Weed Act state that the Commissioner will develop and implement state noxious weed management plans for selected List B species.
2.	State noxious weed management plans are necessary in order to coordinate appropriate actions at the private, local, state, and federal levels that will halt the continued spread of these List B species.
3.	The proposed plans have been developed in consultation with the state noxious weed advisory committee, local governments, and other interested parties.
4.	To maintain the effectiveness of implemented plans, it will be necessary to modify periodically containment boundaries and dates identified for elimination of populations designated for eradication.
8 7.5.	August 12, 2008 – Effective September 30, 2008
Statutory Authority
These amendments to the rules are adopted by the Commissioner of Agriculture pursuant to his authority under the Colorado Noxious Weed Act, §§ 35-5.5-108 and 115, C.R.S. (2007).
Purpose
The purposes of these amendments to the rules are to: (1) develop and implement state noxious weed management plans for selected List B species; (2) revise existing state noxious weed management plans for selected List B species; (3) reclassify two of the currently listed noxious weeds to different categories; and (4) identify priority List B species, among other possible List B species, for which the Commissioner intends to develop and implement state noxious weed management plans.
Factual and Policy Issues
The factual and policy issues encountered in the proposal of these amendments to the rules are as follows:
1.	The current rules pertaining to the administration and enforcement of the Colorado Noxious Weed Act state that the Commissioner will develop and implement state noxious weed management plans for selected List B species.
2.	State noxious weed management plans are necessary in order to coordinate appropriate actions at the private, local, state, and federal levels that will halt the continued spread of these List B species.
3.	The proposed plans have been developed in consultation with the state noxious weed advisory committee, local governments, and other interested parties.
8 7.6.	July 16, 2009 – Effective August 30, 2009
Statutory Authority
These amendments to the rules are adopted by the Commissioner of Agriculture pursuant to his authority under the Colorado Noxious Weed Act, §§ 35-5.5-108 and 115, C.R.S. (2008).
Purpose
The purposes of these amendments to the rules are to: (1) develop and implement state noxious weed management plans for selected List B species; (2) revise existing state noxious weed management plans for selected List B species; (3) reclassify one of the currently listed noxious weeds to a different category; (4) eliminate one of the currently listed noxious weeds from one of two categories; and (5) identify priority List B species, among other possible List B species, for which the Commissioner intends to develop and implement state noxious weed management plans.
The proposed amendments to the rules are as follows:
1.	Deletion from Rule 4.3 of the existing language stating that noxious weed management plans will be developed for Eurasian watermilfoil, Hoary cress, Russian knapweed, and sulfur cinquefoil for 2008 – 2009. 
2.	Addition to Rule 4.3 of new language to establish noxious weed management plans for Eurasian watermilfoil, scentless chamomile, musk thistle, bull thistle, and Scotch thistle for 2009-2010. 
3.	Addition of Mesa County to the list of Colorado counties in Rule 4.7.11A where elimination of Perennial pepperweed is required. 
4.	Addition of a new paragraph B to Rule 4.7.11 to require elimination of all populations of Perennial pepperweed in Mesa County prior to seed development in 2012. 
5.	Addition of new Rule 4.7.16 to establish noxious weed management plans for Hoary cress (Cardaria draba).
6.	Addition of new Rule 4.7.17 to establish noxious weed management plans for Russian knapweed (Centaurea repens).
7.	Addition of new Rule 4.7.18 to establish noxious weed management plans for Sulfur cinquefoil (Potentilla recta). 
8.	Addition of figures 149 to 185 in Rule 4.8 map numbers to reflect the new noxious weed management plans for Hoary cress, Russian knapweed, and Sulfur cinquefoil. 
9.	Deletion of Jointed goatgrass (Aegilops cylindrical) from List C in Rule 5.1.
10.	Addition of Redstem filaree (Erodium cicutarium) to List C in Rule 5.1.
Factual and Policy Issues
The factual and policy issues encountered in the proposal of these amendments to the rules are as follows:
1.	The current rules pertaining to the administration and enforcement of the Colorado Noxious Weed Act state that the Commissioner will develop and implement state noxious weed management plans for selected List B species.
2.	State noxious weed management plans are necessary in order to coordinate appropriate actions at the private, local, state, and federal levels that will halt the continued spread of these List B species.
3.	The proposed plans have been developed in consultation with the state noxious weed advisory committee, local governments, and other interested parties. The proposed plans include weed management plans for Hoary cress (Cardaria draba), Russian knapweed (Centaurea repens), and sulfur cinquefoil (Potentilla recta). 
4.	To maintain the effectiveness of implemented plans, it will be necessary to modify periodically containment boundaries and dates identified for elimination of populations designated for eradication. Dates specified for elimination that expire by 2009 will be reviewed and modified accordingly. 
5.	As per the recommendation of the Colorado Noxious Weed Advisory Committee, the removal of Jointed goatgrass (Aegilops cylindrical) from List C as it has previously been added to List B. 
6. 	As per the recommendation of the Colorado Noxious Weed Advisory Committee, the addition of Redstem filaree (Erodium circutarium) to List C as populations are too numerous in the state to feasibly require elimination.
8 7.7.	June 10, 2010 – Effective July 30, 2010
Statutory Authority
These amendments to the rules are adopted by the Commissioner of Agriculture pursuant to his authority under the Colorado Noxious Weed Act, §§ 35-5.5-108 and 115, C.R.S. (2009). 
Purpose
The purpose of these amendments to the rules are to: (1) develop and implement state noxious weed management plans for selected List B species; (2) revise existing state noxious weed management plans for selected List B species; (3) add “ordinary high water mark” to the definitions; (4) revise existing rules to incorporate definition of ordinary high water mark; (5) identify priority List B species, among other possible List species, for which the Commissioner intends to develop and implement state noxious weed management plans; (6) make non-substantive edits to clarify where the exceptions requiring elimination along roads and streams apply; and (7) correct non-substantive typographical errors and update internal citations to reflect new rules.
The specific amendments to the rules are as follows:
1.	Delete from Rule 4.3 the existing language stating that noxious weed management plans will be developed for Eurasian watermilfoil, scentless chamomile, musk thistle, bull thistle, and Scotch thistle for 2009 - 2010.
2.	Add to Rule 4.3 new language to initiate the development and implementation noxious weed management plans for Dame’s rocket, Russian-olive, Common teasel, Cutleaf teasel, Canada thistle, and Quackgrass in 2010 – 2011.
3.	Add “ordinary high water mark” to Part 1 Definitions, 1.7.
4.	Replace current language referring to high water line with new language using the definition of “ordinary high water mark” in the Rules for the following species: Chinese clematis, leafy spurge, hoary cress, and Russian knapweed.
5.	Add new Rule 4.7.19 to establish a noxious weed management plan for Bull thistle (Cirsium vulgare).
6.	Add new Rule 4.7.20 to establish a noxious weed management plan for Eurasian watermilfoil (Myriophyllum spicatum).
7.	Add new Rule 4.7.21 to establish a noxious weed management plan for Musk thistle (Carduus nutans).
8.	Add of new Rule 4.7.22 to establish a noxious weed management plan for Scentless chamomile (Matricaria perforata).
9.	Add new Rule 4.7.23 to establish a noxious weed management plan for Scotch thistle (Onopordum acanthium and Onopordum tauricum). 
10.	Add new figures 186 to 222 in Rule 4.8 to reflect the new noxious weed management plans for Bull thistle, Eurasian watermilfoil, Musk thistle, Scentless chamomile, and Scotch thistle.
11.	Add Routt County to the list of Colorado counties in Rule 4.7.16U where suppression of Hoary cress is the specified state management objective.
12.	Make non-substantive edits to language in Rules 4.7.1, Absinth wormwood; 4.7.2, Chinese clematis; 4.7.3, Plumeless thistle; 4.7.4, Spotted knapweed; 4.7.6, Black henbane; 4.7.7, Diffuse knapweed; 4.7.8, Oxeye daisy; 4.7.9, Yellow toadflax; 4.7.10, Houndstongue; 4.7.11, Perennial pepperweed; 4.7.12, Dalmatian toadflax; 4.7.13, Leafy spurge; 4.7.16, Hoary cress; 4.7.17, Russian knapweed; and 4.7.18 Sulfur cinquefoil to clarify where the exceptions requiring elimination along roads and streams apply.
13.	Revise existing language on figures 1-185 to reflect non-substantive edits to clarify that exceptions requiring elimination along roads and streams apply.
14.	Correct non-substantive typos in the following rules: 4.4; 4.5; 4.7.4C; and 4.7.7T.  
Factual and Policy Issues
The factual and policy issues encountered in the proposal of these amendments to the rules are as follows:
1.	The current rules pertaining to the administration and enforcement of the Colorado Noxious Weed Act require the Commissioner to develop and implement state noxious weed management plans for selected List B species.
2.	State noxious weed management plans are necessary in order to coordinate appropriate actions at the private, local, state, and federal levels that will halt the continued spread of these List B species.
3.	The proposed plans have been developed in consultation with the state noxious weed advisory committee, local governments, and other interested parties. The proposed plans include weed management plans for Bull thistle (Cirsium vulgare), Eurasian watermilfoil (Myriophyllum spicatum), Musk thistle (Carduus nutans), Scentless chamomile (Matricaria perforate), and Scotch thistle (Onopordum acanthium and Onopordum tauricum).
4.	To maintain the effectiveness of implemented plans, it is necessary to modify periodically containment boundaries and dates specified for elimination of populations designated for eradication. Routt County is being added to the list of counties where suppression is the state management objective for hoary cress in 4.7.16U based on new data the department received in 2010.
5.	The new definition of “Ordinary High water mark” is intended to clarify the areas adjacent to streams and rivers in which certain species must be eliminated.
8.8.	October 11, 2011 – Effective November 30, 2011
Statutory Authority
These amendments to the rules are adopted by the Commissioner of Agriculture pursuant to his authority under the Colorado Noxious Weed Act, §§ 35-5.5-108 and 115, C.R.S. 
Purpose
The purpose of these amendments to the rules are to: (1) designate additional species of noxious weeds for inclusion in the current categories (Lists A and C) listed in Parts 3 and 5 of the existing Rules; (2) move one noxious weed species from List A to the Watch List, and delete its management plan from Part 3; (3) develop and implement new state noxious weed management plans for additional species listed for statewide eradication (List A); (4) develop and implement state noxious weed management plans for selected List B species; (5) correct a management plan in Part 4; (6) add a new list (Watch List) at Part 6 and (7) correct non-substantive typographical errors and update internal citations to reflect new rules.
The specific amendments to the rules are as follows:
1.	Add to Rule 3.1 the following species: Elongated mustard (Brassica elongata), Giant reed (Arundo donax), Japanese knotweed (Polygonum cuspidatum), Giant knotweed (Polygonum sachalinense) and Bohemian knotweed(Polygonum x bohemicum).
2.	Move Sericea lespedeza (Lespedeza cuneata) from List A to the Watch List.
3.	Delete 3.6.15, the management plan for Sericea lespedeza (Lespedeza cuneata).
4.	Add new Rule 3.6.18 to establish a noxious weed management plan for Elongated mustard (Brassica elongata).
5.	Add new Rule 3.6.19 to establish a noxious weed management plan for Giant reed (Arundo donax).  
6.	Add new Rule 3.6.20 to establish a noxious weed management plan for Japanese knotweed (Polygonum cuspidatum).  
7.	Add new Rule 3.6.21 to establish a noxious weed management plan for Giant knotweed (Polygonum sachalinense).  
8.	Add new Rule 3.6.22 to establish a noxious weed management plan for Bohemian knotweed (Polygonum x bohemicum).  
9.	Revise Rule 4.7.17.S to correct management techniques for Russian knapweed (Centaurea repens); and to remove Jefferson from list of counties in 4.7.17.A.
10.	Revise Rule 4.7.22.G. to add Jefferson to the list of counties in 4.7.22.A.
11.	Add new Rule 4.7.24 to establish a noxious weed management plan for Common teasel (Dipsacus fullonum).
12.	Add new Rule 4.7.25 to establish a noxious weed management plan for Cutleaf teasel (Dipsacus laciniatus).
13.	Add new Rule 4.7.26 to establish a noxious weed management plan for Dame’s rocket (Hesperis matronalis.
14.	Add new Rule 4.7.27 to establish a noxious weed management plan for Jointed goatgrass (Aegilops cylindrica).
15.	Add new Rule 4.7.28 to establish a noxious weed management plan for Moth mullein (Verbascum blattaria).
16.	Add new figures 223 through 257 to Rule 4.8 to reflect the new noxious weed management plans for common teasel, cutleaf teasel, dame’s rocket, jointed goatgrass and moth mullein, 
17.	Add to Rule 5.1 Bulbous bluegrass (Poa bulbosa).
18.	Add a new Part 6 Watch List Species.
19.	Make non-substantive corrections of typographical errors in the rule in sections 4.7.4.E, 4.7.5.D, and 5.1. 
Factual and Policy Issues
The factual and policy issues encountered in the proposal of these amendments to the rules are as follows:
1.	The Colorado Noxious Weed Act authorizes the Commissioner to designate by rule those species placed in List A and subject to eradication wherever detected statewide in order to protect neighboring lands and the state as a whole.  The following new species have been determined to present a threat to the economic and environmental value of the state of Colorado are placed on List A:  Elongated mustard (Brassica elongata), Giant reed (Arundo donax), Japanese knotweed (Polygonum cuspidatum), Giant knotweed (Polygonum sachalinense), and Bohemian knotweed (Polygonum x bohemicum
2.	The current rules pertaining to the administration and enforcement of the Colorado Noxious Weed Act state that the Commissioner will develop and implement state noxious weed management plans for selected List A and List B species.
3.	State noxious weed management plans are necessary in order to coordinate appropriate actions at the private, local, state, and federal levels that will halt the continued spread of these List A and List B species.
4.	The proposed plans have been developed in consultation with the state noxious weed advisory committee, local governments, and other interested parties. The proposed plans include weed management plans for List A species Elongated mustard (Brassica elongata), Giant reed (Arundo donax), Japanese knotweed (Polygonum cuspidatum), Giant knotweed (Polygonum sachalinense), and Bohemian knotweed (Polygonum x bohemicum, and List B species Common teasel (Dipsacus fullonum), Cutleaf teasel (Dipsacus laciniatus), Dame’s rocket (Hesperis matronalis, Jointed goatgrass (Aegilops cylindrical), and Moth mullein (Verbascum blattaria).
5.	The change to Rule 3.1 and 3.6.16 is due in order to move Sericea lespedeza (Lespedeza cuneata) from List A to the Watch List based on information gathered about the species that makes it less likely to appear in the state, but still worthy of continuing observation.
6.	The change to Rule 4.7.17.A is due in order to implement Jefferson County’s request that it be removed from the list of counties excepted from the requirement of eliminating Russian knapweed (Centaurea repens) from within its borders.
7.	The change to Rule 4.7.17.S is due in order to correct the management techniques for Russian knapweed (Centaurea repens) which include hand pulling and digging.  Due to the extensive root systems of this species, hand pulling and digging are not considered to be effective in most instances, while mowing in combination with herbicide application is considered more effective.
8.	The change to Rule 5.1 adds Bulbous bluegrass (Poa bulbosa) to List C, reflecting its invasive qualities as determined by a plant assessment process, and also recognizing its widespread distribution.
9.	The change to Part 6 of the rule is due in order to create a new, non-regulatory invasive species list, called the Watch List.  The purpose of the list is to encourage the identification and reporting of these species so that, in consultation with the state noxious weed advisory committee, local governments and other interested parties, the Commissioner may determine which of these species should be designated as noxious weeds.