California Code, Government Code - GOV § 11346

(a) It is the purpose of this chapter to establish basic minimum procedural requirements for the adoption, amendment, or repeal of administrative regulations. Except as provided in Section 11346.1, the provisions of this chapter are applicable to the exercise of any quasi-legislative power conferred by any statute heretofore or hereafter enacted, but nothing in this chapter repeals or diminishes additional requirements imposed by any statute. This chapter shall not be superseded or modified by any subsequent legislation except to the extent that the legislation shall do so expressly.

(b) An agency that is considering adopting, amending, or repealing a regulation may consult with interested persons before initiating regulatory action pursuant to this article.