Colo. Rev. Stat. § 25-4-106
If any such building, room, basement, enclosure, or premises occupied, used, or maintained for the purposes stated in sections 25-4-101 to 25-4-105 or if the floors, sidewalls, ceilings, furniture, receptacles, utensils, implements, appliances, or machinery of any such establishment shall be constructed, kept, maintained, or permitted to remain in a condition contrary to any of the provisions of sections 25-4-101 to 25-4-105, the same is declared a nuisance. Any toilet room, lavatory, or washroom which shall be constructed, kept, maintained, or permitted to remain in a condition contrary to the requirements of section 25-4-105 is declared a nuisance. Any car, truck, or vehicle used in the moving or transportation of any food product which shall be kept or permitted to remain in an unclean, unhealthful, or unsanitary condition is declared a nuisance. Whoever unlawfully maintains, or allows or permits to exist, a nuisance as defined in this section commits a petty offense.
C.R.S. § 25-4-106
Section 803(2) of chapter 462 (SB 21-271), Session Laws of Colorado 2021, provides that the act changing this section applies to offenses committed on or after March 1, 2022.