See an air pollution problem in California? Here is who to call.

Have you ever wondered who to call if you notice a disturbing air pollution problem? No matter where you live in California, here is a list of every air pollution control agency in the state.

Photo Credit: Cal EPA

California has a total of 35 local air districts which are generally responsible for regional planning, monitoring, and permitting of stationary sources. These districts are overseen at the state level by the California Air Resources Board (CARB), which also oversees mobile source air pollution. Additionally, the federal Environmental Protection Agency (EPA) oversees federal aspects of pollution control. California is part of EPA's Region IX.

Below is the complete list of California's air pollution control agencies and their official websites.

California Air Pollution Control Districts (APCD/AQMD)

Air District	Official Website
Amador County APCD	amadorair.org
Antelope Valley AQMD	avaqmd.ca.gov
Bay Area AQMD	baaqmd.gov
Butte County AQMD	butteairquality.com
Calaveras County APCD	calaverasgov.us
Colusa County APCD	countyofcolusa.org
Eastern Kern APCD	kernair.org
El Dorado County AQMD	edcgov.us/airqualitymanagement
Feather River AQMD	fraqmd.org
Glenn County APCD	countyofglenn.net
Great Basin Unified APCD	gbuapcd.org
Imperial County APCD	apcd.imperialcounty.org
Lake County AQMD	lcaqmd.net
Lassen County APCD	lassencounty.org
Mariposa County APCD	mariposacounty.org
Mendocino County AQMD	mendoair.org
Modoc County APCD	modoccounty.us
Mojave Desert AQMD	mdaqmd.ca.gov
Monterey Bay Air Resources District	mbard.org
North Coast Unified AQMD	ncuaqmd.org
Northern Sierra AQMD	myairdistrict.com
Northern Sonoma County APCD	nosonomaair.org
Placer County APCD	placerair.org
Sacramento Metropolitan AQMD	airquality.org
San Diego County APCD	sdapcd.org
San Joaquin Valley APCD	valleyair.org
San Luis Obispo County APCD	slocleanair.org
Santa Barbara County APCD	ourair.org
Shasta County AQMD	shastacounty.gov
Siskiyou County APCD	co.siskiyou.ca.us
South Coast AQMD	aqmd.gov
Tehama County APCD	tehcoapcd.net
Tuolumne County APCD	tuolumnecounty.ca.gov
Ventura County APCD	vcapcd.org
Yolo-Solano AQMD	ysaqmd.org

SJVAPCD Healthy Air Living Kids’ 2026 Calendar now available for free

Every year the San Joaquin Valley Air Pollution Control District (SJVAPCD) asks student artists in grades K-12 to submit drawings with clean air themes for its Healthy Air Living Kids' Calendar Contest.

Photo Credit: SJVAPCD

The winners for next year's calendar have been selected and the 2026 calendar is now available for a free download here or by contacting the SJVAPCD at  public.education@valleyair.org

Entries for the 2027 contest may be submitted until September 26, 2026.

New Public Meeting scheduled for CARB's GHG Reporting and Financial Risk Disclosure Initial Regulation

As we noted in a previous post, due to certain court decisions, the California Air Resources Board (CARB) had to delay implementing some of the requirements of recently adopted California regulations that pertain to greenhouse gas (GHG) emissions and the reporting of the financial risks associated with them by certain corporations operating in California. 

Photo Credit: CARB website

To address that, CARB has scheduled a new public meeting to consider adopting final reporting regulations for February 26, 2026, at 9:00 A.M., with a continuation to the next day if needed.

The public comment period will begin on December 26, 2025. Written comments may be submitted on or after that date with a deadline of February 9, 2026, representing a 45-day public comment period. (CARB is providing extra time for the public to review everything because of the holidays.)

An agenda for the meeting has not yet been posted as of today, however, it will be available at this link at least 10 days before the meeting: Public Agenda

The proposed final regulations were submitted to the California Office of Administrative Law (OAL) today, December 9, 2025. These and all of the rulemaking documents are available for review on CARB's website at this link: Rulemaking Documents 

CARB postpones GHG Financial Risk report deadline due to court order.

As we noted in an earlier article, certain California businesses were required to submit a Climate-Related Financial Risk Report by January 1, 2026, as required by Senate Bill SB261 and the California Health and Safety Code. 

Photo Credit: AI image generated by Google Gemini, Fair Use

However, this requirement has been postponed until further notice as a result of a successful legal challenge by the California Chamber of Commerce. On November 18, 2025 - the same date as a CARB scheduled public workshop on this and related reports - the Ninth Circuit Court of Appeals granted an injunction against enforcement of this requirement as a result of other appeal proceedings related to it. 

Those proceedings will not be held until January 9, 2026, after the January 1, 2026 deadline.

CARB will provide further information and a new reporting date once the appeal process is completed. Additionally, no enforcement action will be taken for failure to submit the report by the original date.

In the meantime, CARB has stated that they will accept voluntary reports as of today, Dec. 1, 2025