California Code, Health and Safety Code - HSC § 18942

(a) The commission shall publish, or cause to be published, editions of the code in its entirety once in every three years. In the intervening period the commission shall publish, or cause to be published, supplements as necessary. For emergency building standards defined in subdivision (a) of Section 18913, an emergency building standards supplement shall be published whenever the commission determines it is necessary.

(b) The commission shall publish the text of Article 2.5 (commencing with Section 115920) of Chapter 5 of Part 10 of Division 104, within the requirements for single-family residential occupancies contained in Part 2.5 of Title 24 of the California Code of Regulations, with the following note:

“NOTE: These regulations are subject to local government modification. You should verify the applicable local government requirements at the time of application for a building permit.”

(c) The commission shall publish the text of Section 116064.2 within Part 2 of Title 24 of the California Code of Regulations.

(d) The commission may publish, stockpile, and sell at a reasonable price the code and materials incorporated therein by reference if it deems the latter is insufficiently available to the public, or unavailable at a reasonable price. Each state department concerned and each city, county, or city and county shall have an up-to-date copy of the code available for public inspection.