Upcoming Scientific Review Committee Meeting

Agenda and Presentation for October 15, 2025 BACT SRC Meeting will be available here.

Previous Scientific Review Committee Meeting

Agenda and Presentation for June 4, 2025 BACT SRC Meeting:

Download Agenda Here (PDF, 228KB)
Download Presentation Here (PDF, 3.5MB)

<><><><><><><><><><><><><><><><><>

 BACT GUIDELINE UPDATES

The latest round of BACT Guideline Updates were approved by
the Governing Board on February 2, 2024

  - Notice of Public Hearing (PDF, 141 KB)
  - Board Letter (PDF, 11.8MB)
  - Board Presentation (PDF, 1.4MB)

<><><><><><><><><><><><><><><><><>

Public Review

South Coast AQMD’s Governing Board has established a public comment period allowing any interested person to review and comment on South Coast AQMD BACT determinations that result in BACT requirements that are more stringent than previously imposed BACT. Any member of the public wishing to be notified of these BACT determinations may sign up in the following ways:

Online: eNews

>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

Mail:
BACT Team
South Coast Air Quality Management District
Engineering and Permitting
21865 Copley Drive
Diamond Bar, CA 91765-0934

E-mail: BACT_Team@aqmd.gov

Phone: 909-396-2353

This service is free. Any member of the public wishing to submit comments regarding these BACT determinations, please see "Submitting Public Comments" below.

BACT Docket

South Coast AQMD maintains for public access a BACT docket that includes:

• Public comments in response to specific BACT determinations,

• Public comments on the BACT Guidelines, and

• South Coast AQMD responses to the comments.

The docket does not include confidential business information or materials maintained for public distribution by other sources. The docket is accessible from the Internet by clicking on the following link: BACT Docket.

To request other public records such as permits and applications, please submit a public records request.

Submitting Public Comments

The public may submit comments in the following ways:

Mail:
South Coast Air Quality Management District
BACT Docket
Engineering and Permitting
21865 Copley Drive
Diamond Bar, CA 91765-0934

E-mail: BACT_Team@aqmd.gov