Notices for New BACT Determinations


October 27, 2020 | 2:00 p.m. - 4:00 p.m.

Remote Meeting has been scheduled to present proposed updates to the BACT Guidelines.

Pursuant to Governor Newsom's Executive Orders N-25-20 (March 12, 2020) and N-29-20 (March 17, 2020), the BACT Scientific Review Committee meeting will only be conducted via video conferencing and by telephone.  Please follow the instructions below to join the webinar meeting remotely.  Teleconference locations do not need to be disclosed nor open to the public.


(Instructions also provided at bottom of the agenda)

Join Zoom Webinar Meeting -  from PC or Laptop
Zoom Webinar ID: 943 1740 5856 (applies to all)

 Teleconference Dial In

+1 669 900 6833

One tap mobile


Audience will be allowed to provide public comment through telephone or Zoom connection during public comment periods.

Phone controls for participants:

 The following commands can be used on your phone's dial pad while in Zoom Webinar meeting:

*9-Raise hand

The Agenda and Proposed Updates to the BACT Guidelines are available at

Notices for New BACT Determinations

The public participation process in BACT determinations was enhanced to include technical review and comments by a focused Scientific Review Committee (SRC) at periodic intervals, prior to the updates of the South Coast AQMD BACT Guidelines. At the same time, a 30-day notice period has been established for the SRC and interested persons to review and comment on South Coast AQMD BACT determinations that result in BACT requirements that are more stringent than previously imposed BACT, the following are notices of new BACT determinations that are more stringent than prior BACT requirements by South Coast AQMD.

Recent BACT Notices:

The latest round of BACT Guideline updates were approved by the Board on February 1, 2019.


Ask the South Coast AQMD BACT Team
(909) 396-2516
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