Commencing July 1, 2014, all smoke alarms including combination smoke alarms, that are solely battery powered shall contain a nonreplaceable, nonremovable battery that is capable of powering the smoke alarm for at least 10 years. Commencing January 1, 2015, all new listings of smoke alarms or combination smoke alarms shall display the date of manufacture, provide a place on the device where the date of installation can be written, and incorporate a hush feature. This requirement does not apply to existing listings for battery operated smoke alarms that meet the exception under Provision (1) which have been ordered by, or are in the inventory of, an owner, managing agent, contractor, wholesaler, or retailer on or before July 1, 2014. For the manufacturers, effective July 1, 2015, all smoke alarms (120 VAC hardwired or battery operated) must comply with Provision (2) which shall display the date of manufacture, provide a place on the device where the date of installation can be written, and incorporate a hush feature. Effective July 1, 2015, all battery operated smoke alarms must also comply with Provision (1) which shall contain a nonreplaceable, nonremovable battery that is capable of powering the smoke alarm for at least 10 years. It would also require that for all dwelling units intended for human occupancy, for which a building permit is issued on or after January 1, 2014, for alterations, repairs, or additions exceeding one thousand dollars ($1,000), the permit issuer shall not sign off on the completion of work until the permittee demonstrates that all smoke alarms required for the dwelling unit are devices approved and listed by the Office of the State Fire Marshal pursuant to Health and Safety Code Section 13114. The law also requires that by January 1, 2016, owners of a dwelling unit intended for human occupancy in which one or more units is rented or leased shall install additional smoke alarm, as needed, to ensure that smoke alarms are located in compliance with current building standards. Existing alarms installed need not be replaced unless the alarm is inoperable. Smoke detectors, shall be mounted on the ceiling or wall of each existing room used for sleeping purposes and at a point centrally located on the wall or ceiling of the existing corridor or area giving access to these rooms. Where a dwelling unit has more than one story or where a dwelling unit has a basement, a detector shall be installed on each story or basement. Smoke detectors may be battery operated in Single Family Dwellings only. Smoke detectors in Three Unit or More Dwellings, Condominiums and Apartments shall be hard wired and be equipped with a battery backup (Hard wired detectors installed prior to May 11, 1999 DO NOT require battery backup). Please refer to the actual code section listed below and all manufactures requirements for location and type of smoke detectors required. (Section 91.8603 L.A.M.C. – Effective Aug 1, 1980)