§ 12–1104
Statutes in effect as of October 1, 2026.
Md. Code Ann., Pub. Safety § 12-1104 (2026)
Title 12. Building and Material Codes; Other Safety Provisions
Subtitle 11. Carbon Monoxide Alarms
§ 12–1104LinkCopy Citation
(a)
Except as provided in subsections (b) and (c) of this section, there must be a carbon monoxide alarm installed in a central location outside of each sleeping area within a dwelling subject to this subtitle.
(b)
For a hotel or a lodging or rooming house, on or after April 1, 2017, there must be a carbon monoxide alarm installed within the dwelling, as follows:
(1)
on the wall inside each guest room that:
(i)
contains a device that emits carbon monoxide;
(ii)
is adjacent to a room or area that contains a device that emits carbon monoxide;
(iii)
is adjacent to an enclosed unventilated attached garage; or
(iv)
is connected by ductwork to an enclosed unventilated attached garage or room or area that contains a device that emits carbon monoxide; and
(2)
on a wall in each room or area that:
(i)
contains a device that emits carbon monoxide;
(ii)
is adjacent to a room or area that contains a device that emits carbon monoxide; or
(iii)
is adjacent to an enclosed unventilated attached garage.
(c)
For a rental dwelling unit, on or after April 1, 2018, there must be a carbon monoxide alarm installed within the dwelling as follows:
(1)
outside and in the immediate vicinity of each separate sleeping area; and
(2)
on every level of the unit, including the basement.
(d)
Notwithstanding subsections (a), (b), and (c) of this section, if there is a centralized alarm system that is capable of emitting a distinct and audible sound to warn all occupants, the owner of a dwelling may install a carbon monoxide alarm within 25 feet of any carbon monoxide–producing fixture and equipment.