California Air Resources Board

2023 Workshop

On Wednesday, October 4, 2023, CARB will hold a public workshop/webinar on proposed updates to the area designations for State ambient air quality standards. During the webinar, staff will present 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 (2020 to 2022). 

• Meeting Notice
• Presentation (to be posted after the workshop)
• Presentation Text (to be posted after the workshop)

2022 Amendments

The California Air Resources Board (CARB) adopted updates to the area designations for State ambient air quality standards at a public meeting on January 26, 2023.  Information regarding these amendments can be found on the CARB regulatory webpage. These amendments have been sent to the Office of Administrative Law (OAL) for approval and the rulemaking is expected to be approved December 2023.