Section 18.70.095 - Smoke and carbon monoxide detection devices(a) Smoke detection devices shall be installed and maintained in all dwelling units in the state, and carbon monoxide detection devices shall be installed and maintained in all qualifying dwelling units in the state. The smoke detection devices must be of a type and shall be installed in a manner approved by the state fire marshal. The carbon monoxide detection devices must have an alarm and shall be installed and maintained according to manufacturers' recommendations.(b) In a dwelling unit occupied under the terms of a rental agreement or under a month-to-month tenancy, (1) at the time of each occupancy, the landlord shall provide smoke detection devices and, if the dwelling unit is a qualifying dwelling unit, carbon monoxide detection devices; the devices must be in working condition, and, after notification of any deficiencies by the tenant, the landlord shall be responsible for repair or replacement; and(2) the tenant shall keep the devices in working condition by keeping charged batteries in battery-operated devices, if possible, by testing the devices periodically, if possible, and by refraining from permanently disabling the devices.(c) If a landlord did not know and had not been notified of the need to repair or replace a smoke detection device or a carbon monoxide detection device, the landlord's failure to repair or replace the device may not be considered as evidence of negligence in a subsequent civil action arising from death, property loss, or personal injury.(d) In this section, (1) "dwelling unit" has the meaning given in AS 34.03.360;(2) "landlord" has the meaning given in AS 34.03.360;(3) "qualifying dwelling unit" means a dwelling unit that(A) contains or is serviced by a carbon-based-fueled appliance or device that produces by-products of combustion;(B) has an attached garage or carport; or(C) is adjacent to a parking space;(4) "rental agreement" has the meaning given in AS 34.03.360;(5) "tenant" has the meaning given in AS 34.03.360.