I don't know if it is code required yet. I just heard it from the supply house so I wanted to make sure it is not "hear & say".
In fact my local supply house will not sell regular 9V battery operated units anymore. According to him "we are not allowed to sell 9 volt battery operated detectors anymore"
I don't know??
It's in the CA Health and Safety Code.
13114. (a) The State Fire Marshal, with the advice of the State
Board of Fire Services, shall adopt regulations and standards as he
or she may determine to be necessary to control the quality and
installation of fire alarm systems and fire alarm devices marketed,
distributed, offered for sale, or sold in this state.
(b) (1) No person shall market, distribute, offer for sale, or
sell any fire alarm system or fire alarm device in this state unless
the system or device has been approved and listed by the State Fire
Marshal.
(2) (A) Except as provided in subparagraph (B), commencing July 1,
2014, in order to be approved and listed by the State Fire Marshal,
a smoke alarm that is only operated by a battery shall contain a
nonreplaceable, nonremovable battery that is capable of powering the
smoke alarm for at least 10 years.
(B) This paragraph shall not apply to smoke alarms that have been
ordered by, or are in the inventory of, an owner, managing agent,
contractor, wholesaler, or retailer on or before July 1, 2014, until
July 1, 2015.
(3) Commencing January 1, 2015, in order to be approved and listed
by the State Fire Marshal, a smoke alarm shall display the date of
manufacture on the device, provide a place on the device where the
date of installation can be written, and incorporate a hush feature.