What is the difference between the Model Codes and the California Building Standards Code?
The difference between the publications is the adoption and amendments. The CBSC is building standards that are adopted through the California building standards adoption process, as set forth in the Building Standards Law, HSC, Sections 18901 et. Seq., and incorporates the text of the latest published model codes by reference, with changes therein, or deletions therefrom, directly into the text of the CBSC. The model codes contain provisions adopted through a consensus processes, governmental or ANSI, depending on the adopting organization, and do not contain California amendments. A-7. What is the meaning of HCD 1, HCD 1/AC, and HCD 2 as used in the California Building Code? The acronym HCD 1, HCD 1/AC, and HCD 2, as used in the matrix and selected banners in various sections of code, were established to provide the code user the ability to differentiate between the applications of the adopted sections. The references for the following applications are found in CBC Sections 101.17.9
