(a) In this subtitle the following words have the meanings indicated. (b) 'Carbon monoxide alarm' means a device that: (1) senses carbon monoxide; (2) when sensing carbon monoxide, is capable of emitting a distinct and audible sound; (3) is listed and carries the listing of a nationally recognized testing laboratory approved by the Office of the State Fire Marshal; and (4) (i) is wired into an alternating current (AC) powerline with secondary battery backup; or (ii) for a hotel, a lodging or rooming house, or a rental dwelling unit: 1. is wired into an alternating current (AC) powerline with secondary battery backup; 2. is battery–powered, sealed, tamper resistant, and using a long–life battery that has a life of not less than 10 years; or 3. is connected to an on–site control unit that monitors the carbon monoxide alarm remotely so that a responsible party is alerted when the device activates the alarm signal and receives its primary power from a battery or the control unit. (c) (1) 'Dwelling' means a building or part of a building that provides living or sleeping facilities for one or more individuals. l and receives its primary power from a battery or the control unit. (c) (1) 'Dwelling' means a building or part of a building that provides living or sleeping facilities for one or more individuals. (2) 'Dwelling' includes a one or two family dwelling, multifamily dwelling, hotel, lodging or rooming house, or dormitory. (d) 'Hotel' has the meaning stated in § 9–201 of this article. (e) 'Install' means to attach to the wall or ceiling of a dwelling in accordance with: (1) the National Fire Protection Association (NFPA) 720 standard for the installation of carbon monoxide warning equipment in dwelling units; and (2) the manufacturer’s recommendations. (f) 'Lodging or rooming house' has the meaning stated in § 9–201 of this article. (g) 'Rental dwelling unit' has the meaning stated in § 6–801 of the Environment Article. (h) 'Sleeping area' has the meaning stated in § 9–101 of this article.
Maryland Legal Code