A. All existing residential occupancies and all residential occupancies to be constructed in the future shall be equipped with CO detectors in accordance with the requirements of this chapter.
B. The owner of a residential occupancy shall be responsible to: 1) Install and maintain required CO detector(s) in such residential occupancy in accordance with the requirements of this chapter; 2) Test and replace all batteries necessary for operation of a required CO detector, except for dwellings or dwelling units where the tenant has been notified of such responsibility; 3) Immediately repair or replace any defective CO detector required under the provision of this chapter.
C. The owner of a dwelling or dwelling unit that is rented or leased to a tenant, shall: 1) Immediately, upon notice from the tenant, repair or replace a defective CO detector required to be located within such dwelling or dwelling unit, except that the owner need not repair or replace any CO detector where the defective condition was caused by the tenant, the tenant’s family, or the tenant’s guests or invitees, by inappropriate use or misuse of the dwelling or dwelling unit during the rental term or any extension of it; 2) Install new batteries in any required CO detector at the beginning of a new lease or tenancy; 3) Furnish to the tenant at the beginning of a new lease or new tenancy written notice of the owner’s responsibility to install and maintain a required CO detector on the premises.
D. A tenant in possession of a dwelling or dwelling unit shall be responsible for: 1) Testing and replacing any batteries necessary for operation of a required CO detector; 2) Informing the owner of a CO detector malfunction; and 3) Repairing or replacing defective CO detectors in the event that the defective condition was caused by the tenant, the tenant’s family, or the tenant’s guests or invitees, by inappropriate use or misuse of the dwelling or dwelling unit during the rental term or any extension of it.