California Code, Public Resources Code - PRC § 4554.5

(a) Notwithstanding Section 11343.4 of the Government Code, except as specified in subdivision (b), rules and regulations adopted or revised pursuant to this chapter shall become effective on the next January 1 that is not less than 30 days from the date of approval of those rules or regulations by the Office of Administrative Law.

(b) Notwithstanding subdivision (a), if the board adopts emergency regulations pursuant to Section 4555, and subsequently adopts those emergency regulations as nonemergency rules or regulations pursuant to this chapter, the rules or regulations shall become effective 30 days from the date of approval of the rules or regulations by the Office of Administrative Law.

(c) This section shall become operative on January 1, 2001.