California Air Resources Board

Office of Administrative Law (OAL) approved the amendments to the CHC regulation and filed it with the Secretary of State on December 30, 2022. The effective date is January 1, 2023.

• Final Regulation Order: title 13, section 2299.5 and title 17, section 93118.5

More documents can be accessed on the Rulemaking Activity page.

Office of Administrative Law (OAL) approved the amendments to the CHC regulation and filed it with the Secretary of State on June 20, 2011. The effective date is July 20, 2011.

• Final Regulation Order: title 13, section 2299.5 
• Final Regulation Order: title 17, section 93118.5  

More documents can be accessed online. 

OAL approved the rulemaking and filed it with the Secretary of State on October 20, 2008. The regulation became effective on November 19, 2008.

• Memorandum to OAL 
• Final Regulation Order as approved by OAL
  • section 2299.5, title 13, California Code of Regulations 
  • section 93118.5, title 17, California Code of Regulations 

More documents can be accessed online.