Colorado Revised Statutes Title 31. Government Municipal § 31-10-606. Preparing to vote

(1) Any registered elector desiring to vote shall write his name and address on a form available at the polling place and shall give the form to one of the judges of election, who shall thereupon announce the same clearly and audibly. If said elector is unable to write, he may request assistance from one of the judges of election, and such judge must sign the form and witness the elector's mark. The form to be available shall be in substance: “I, ․․․․․․․․․․․․․․․․․․․․, who reside at ․․․․․․․․․․․․․․․․․․․․, am a registered elector of this precinct and desire to vote at this ․․․․․․․․․․․․ election. Date ․․․․․․․․․․․․․․․․․․․․”. If the name is found on the registration book or the registration list by the election judge having charge thereof, he shall likewise repeat the name, and said elector shall be allowed to enter the immediate voting area. If the name is not found on the registration book or the registration list by the election judge, such election judge, if practicable and not unduly disruptive to the election process, shall attempt to contact the county clerk and recorder's office, by telephone or otherwise, to request oral verification of the elector's registration in that precinct; and, if such oral verification is received by such election judge from the county clerk and recorder's office, such election judge shall record such verification on a form to be provided by the clerk and shall likewise repeat the elector's name, and said elector shall be allowed to enter the immediate voting area. After it is determined that the elector is duly registered, the election official in charge of the pollbook shall write upon the pollbook the name of such elector and, in precincts using paper ballots, the number of the ballot given to such elector.

(2) Besides the election officials, not more than four voters in excess of the number of voting booths or voting machines shall be allowed within the immediate voting area at one time.

(3) The completed signature forms shall be returned with other election materials to the clerk. If no challenges have been made, the forms may be destroyed after forty-five days.

(4) If the judges are using the registration book and the registered elector's signature does not appear on his or her registration record, said elector shall show documentation of his or her registration and sign his or her registration record before being allowed to vote. If said elector is unable to write, he or she may request assistance from one of the judges of election, and such judge shall sign the registration record and witness said elector's mark.

(5) In precincts using paper ballots, an election judge shall give the registered elector one, and only one, ballot, which shall be removed from the package of ballots by tearing the same along the perforated line between the stub and duplicate stub. Before delivering such ballot to said elector, the judge of election having charge of the ballots shall endorse his initials on the duplicate stub, and said judge shall enter the date and the number of said ballot on the registration book or registration list opposite the name of said elector.