(a) Occupational safety and health standards and orders shall be adopted, amended, or repealed as provided in Chapter 3.5 (commencing with Section 11340) of Part 1 of Division 3 of Title 2 of the Government Code, except as modified by this chapter.
(b) If an emergency regulation is based upon an emergency temporary standard published in the Federal Register by the Secretary of Labor pursuant to Section 6(c)(1) of the Federal Occupational Safety and Health Act of 1970 (P.L. 91-596; 29 U.S.C. Sec. 655(c)(1)), the 120-day period specified in Section 11346.1 of the Government Code shall be deemed not to expire until 120 days after a permanent standard is promulgated by the Secretary of Labor pursuant to Section 6(c)(3) of the Federal Occupational Safety and Health Act of 1970 (29 U.S.C. Sec. 655(c)(3)).