California Code, Government Code - GOV § 65860.1

(a) Not more than 12 months after the amendment of its general plan pursuant to Section 65302.9, each city and county within the Sacramento-San Joaquin Valley shall amend its zoning ordinance so that it is consistent with the general plan, as amended.

(b) Notwithstanding any other law, this section shall apply to all cities, including charter cities, and counties within the Sacramento-San Joaquin Valley.  The Legislature finds and declares that flood protection in the Sacramento and San Joaquin Rivers drainage areas is a matter of statewide concern and not a municipal affair as that term is used in Section 5 of Article XI of the California Constitution.

(c) This section shall not be construed to limit or remove any liability of a city or county prior to the amendment of the zoning ordinance except as provided in Section 8307 of the Water Code.