Colorado Revised Statutes Title 1. Elections § 1-13.5-606. Manner of voting in precincts using paper ballots

(1) In precincts that use paper ballots, upon receiving his or her ballot, an eligible elector shall immediately retire alone to one of the voting booths provided and shall prepare the ballot by marking or stamping in ink or indelible pencil, in the appropriate margin or place, a cross mark (x) opposite the name of the candidate of the elector's choice for each office to be filled; except that no cross mark (x) is required opposite the name of a write-in candidate. In case of a question submitted to a vote of the people, the elector shall mark or stamp, in the appropriate margin or place, a cross mark (x) opposite the answer that he or she desires to give. Before leaving the voting booth, the elector shall fold the ballot without displaying the marks thereon so that the contents of the ballot are concealed and the stub can be removed without exposing any of the contents of the ballot, and the elector must keep the ballot folded until the elector deposits the ballot in the ballot box.

(2) Each eligible elector who has prepared a ballot and is ready to cast his or her vote shall then leave the voting booth and approach the election judge in charge of the ballot box. The elector shall give his or her name to that judge, who shall announce the name of such elector and the number upon the duplicate stub of the ballot, which number must correspond with the stub number previously placed on the registration list or pollbook. If the stub number of the ballot corresponds and is identified by the initials of the election judge placed thereupon, the election judge shall then remove the duplicate stub from the ballot. The ballot must then be returned to the eligible elector, who shall, in full view of the election judges, cast his or her vote by depositing the ballot in the ballot box.

(3) Each eligible elector shall mark and deposit his or her ballot without undue delay and shall leave the immediate voting area as soon as the elector votes. No elector shall occupy a voting booth already occupied by another, nor remain within the immediate voting area for more than ten minutes, nor occupy a voting booth for more than five minutes if all such booths are in use and other electors are waiting to occupy the same. No eligible elector whose name has been entered on the pollbook is allowed to reenter the immediate voting area during the election except when accompanied by an election judge.