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Secretary of State
Jena Griswold

Colorado Secretary of State logo - Colorado Secretary of State Jena Griswold

Picture of Secretary of State Jena Griswold

Colorado Secretary of State logo - cube with a C in it

Secretary of State
Jena Griswold


Circulation of Initiative Petitions

SoS Home > Elections home > Initiatives home > Training guide > Gathering Signatures

II. Gathering signatures

1. Signatures must be collected in the circulator's presence

Colorado law requires that signatures must be affixed in the circulator’s presence.  This means that the circulator of that petition section must personally witness each signature collected on that petition section.  It is not sufficient that you are merely present in the same room or vicinity or that another circulator is present observing signature collection.  This also means there may only be one circulator per petition section.    

[1-40-111(2)(a), C.R.S.]

2. Eligibility to sign a petition

Only registered electors who would be eligible to vote on the proposed measure may sign the petition. 

A circulator must not attempt to obtain the signature of any person that, to the best of his/her knowledge, is not a registered elector at the time of signing. 

[1-40-111(1), C.R.S.]

3. Instructions for petition signers

a. Petition signer dos and don'ts


  • Read the warning that appears at the top of each page of the petition.
  • Print clearly in black or blue ink.
  • Complete all portions of the signature line with the required information.
  • Use the residence address where you are registered to vote.


  • Sign for another person.
  • Sign the same petition more than once.
  • Use ditto marks to provide information on a signature line.
  • Provide a post office box for your residence address.

b. Sample signature line

A signature line consists of two lines, both of which must be fully completed. For example:


c. Correcting mistakes

If a small correction is made, the signer should cross out the error and initial the change.  For example:


If a larger correction is required, the signer should completely cross out the incorrect information and proceed to use the next blank signature line.  For example:


d. Withdrawal of signature

A registered elector who signs a petition may withdraw his/her signature from a petition by filing a written request for such withdrawal with the Secretary of State at any time on or before the day that the petition is filed with the Secretary of State.

[1-40-109(3), C.R.S.]

4. Assisting disabled or illiterate electors

If a registered elector is physically disabled or illiterate and wishes to sign the petition, the elector may do so by signing his or her name or making his or her mark in the signature area.  Any person, except the circulator, may assist the elector in completing the remaining required information.  The person providing assistance must sign his or her name and address and must clearly state that such assistance was given to the disabled or illiterate elector, either in the same signature line (as illustrated below) or in the blank signature line below (using arrows or some type of indicator that the person assisted with the signature line above).

[1-40-111(1), C.R.S.]