Colorado Revised Statutes Title 38. Property Real and Personal § 38-45-103. Carbon monoxide alarms in multi-family dwellings--rules

(2) Notwithstanding any other provision of law, every dwelling unit of a multi-family dwelling that includes fuel-fired appliances or an attached garage where, on or after July 1, 2009, interior alterations, repairs, fuel-fired appliance replacements, or additions, any of which require a building permit, occurs or where one or more rooms lawfully used for sleeping purposes are added shall have an operational carbon monoxide alarm installed within fifteen feet of the entrance to each room lawfully used for sleeping purposes or in a location as specified in any building code adopted by the state or any local government entity.

(3) No person shall remove batteries from, or in any way render inoperable, a carbon monoxide alarm, except as part of a process to inspect, maintain, repair, or replace the alarm or replace the batteries in the alarm.