Cal. Pub. Res. Code § 4290.5

(a) On or before July 1, 2021, and every five years thereafter, the board, in consultation with the State Fire Marshal, shall survey local governments, including counties, cities, and fire districts, to identify existing subdivisions located in a state responsibility area or a very high fire hazard severity zone, identified pursuant to Section 51178 of the Government Code, without a secondary egress route that are at significant fire risk.
(b)
1. (1) The board, in consultation with the State Fire Marshal and the local government that identified the subdivision, shall develop recommendations to improve the subdivision’s fire safety. The recommendations may include, but are not limited to, the following:
  1. (A) Creating secondary access to the subdivision.
  2. (B) Improvements to the existing access road.
  3. (C) Other additional fire safety measures.
2. (2) The board shall provide the final recommendations developed pursuant to this subdivision to the local government that identified the subdivision and to the residents of the subdivision.
(c) The board may enter into contracts with an independent group to conduct the survey required in subdivision (a).
(d) For purposes of this section, “subdivision” means an existing residential development of more than 30 dwelling units.
(e) The board shall maintain a list of the subdivisions identified in subdivision (a) and the status of the implementation of the recommendations provided pursuant to subdivision (b).