Colorado Revised Statutes Title 1. Elections § 1-13.5-616. Preservation of ballots and election records

(1) The ballots, when not required to be taken from the sealed box for the purpose of election contests, shall remain in the sealed box in the custody of the designated election official until twenty-five months after the date the polls closed for the election at which the ballots were cast or until the time has expired for which the ballots would be needed in any contest proceedings, at which time the sealed box must be opened by the designated election official and the ballots destroyed by fire, shredding, burial, or by any other method approved by the governing body.

(2) The designated election official shall preserve all other official election records and forms for at least six months following the date the polls closed.