C.R.S. § 1-13-106

Any person who falsely makes, alters, forges, or counterfeits any ballot before or after it has been cast, or who forges any name of a person as a signer or witness to a petition or nomination paper, or who forges any letter of acceptance, declination, or withdrawal, or who forges the name of a registered elector to a voter’s mail-in or mail ballot commits forgery as set forth in section 18-5-102 , C.R.S., and shall be punished as provided in section 18-1.3-401 , C.R.S.