Cal. Bus. & Prof. Code § 26

Wherever, pursuant to this code, any state department, officer, board, agency, committee, or commission is authorized to adopt rules and regulations, such rules and regulations which are building standards, as defined in Section 18909 of the Health and Safety Code, shall be adopted pursuant to the provisions of Part 2.5 (commencing with Section 18901) of Division 13 of the Health and Safety Code unless the provisions of Sections 18930, 18933, 18938, 18940, 18943, 18944, and 18945 of the Health and Safety Code are expressly excepted in the provision of this code under which the authority to adopt the specific building standard is delegated. Any building standard adopted in violation of this section shall have no force or effect. Any building standard adopted prior to January 1, 1980, pursuant to this code and not expressly excepted by statute from such provisions of the State Building Standards Law shall remain in effect only until January 1, 1985, or until adopted, amended, or superseded by provisions published in the State Building Standards Code, whichever occurs sooner.