California Air Resources Board

2022 Proposed Amendments

The California Air Resources Board (CARB) will consider proposed updates to the area designations for State ambient air quality standards at a public meeting on January 26, 2023.  Information regarding these amendments, the upcoming meeting, as well as opportunities for public comment can be found on the CARB regulatory webpage. There is a 45-day comment period from December 2, 2022 to January 17, 2023.

2022 Workshop

On Wednesday, September 1, 2022, CARB held a public webinar on proposed updates to the area designations for State ambient air quality standards. During the webinar, staff presented background information on the State standards, the designation process, and proposed amendments to the area designations. These amendments reflect updates based on the annual review of the latest complete monitoring data (2019 to 2021). 

• Meeting Notice
• Presentation
• Presentation Text

2021 Amendments

The California Air Resources Board (CARB) adopted updates to the area designations for State ambient air quality standards at a public meeting on February 24, 2022.  Information regarding these amendments, the upcoming meeting, as well as opportunities for public comment can be found on the CARB regulatory webpage. The Office of Administrative Law (OAL) approved the rulemaking and filed with the Secretary of State on October 10, 2022.  The amendments are effective as of October 10, 2022.