Air Pollution Control Districts

California's 35 local Air Pollution Control Districts are responsible for regional air quality planning, monitoring, and stationary source and facility permitting. The districts administer air quality improvement grant programs and are CARB's primary partners in efforts to ensure that all Californians breathe clean air.

Amador County APCD

Includes all of Amador County

(209) 257-0112

Antelope Valley AQMD

Includes northeast portion of Los Angeles County

(661) 723-8070
Bay Area AQMD
Includes Alameda, Contra Costa, Marin, Napa, San Francisco, San Mateo, 
and Santa Clara counties, and the western portion of Solano and 
southern portion of Sonoma counties
(415) 749-5000

Butte County AQMD

Includes all of Butte County

(530)332-9400

Calaveras County APCD

Includes all of Calveras County

(209) 754-6399

Colusa County APCD

Includes all of Colusa County

(530) 458-0590

Eastern Kern APCD

Includes eastern portion of Kern County

(661) 862-5250

EL Dorado County AQMD

Includes all of El Dorado County

(530) 621-7501

Feather River AQMD

Includes all of Sutter and Yuba counties

(530) 634-7659

Glenn County APCD

Includes all of Glenn County

(530) 934-6500

Great Basin Unified APCD

Includes all of Alpine, Inyo, and Mono counties

(760) 872-8211

Imperial County APCD

Includes all of Imperial County

(442) 265-1800

Lake County AQMD

Includes all of Lake County

(707) 263-7000

Lassen County APCD

Includes all of Lassen County

(530)-252-4247

Mariposa County APCD

Includes all of Mariposa County

(209) 966-3689

Mendocino County AQMD

Includes all of Mendocino County

(707) 463-4354

Modoc County APCD

Includes all of Modoc County

(530) 233-6401
Mojave Desert AQMD 
Includes the Northern portion of San Bernardino County, and the eastern
portion of Riverside County
(760) 245-1661
Monterey Bay Air Resources District 
Includes all of Monterey, San Benito, and Santa Cruz counties
(831) 647-9411

North Coast Unified AQMD

Includes all of Del Norte, Humboldt, and Trinity counties

(707) 443-3093

Northern Sierra AQMD

Includes all of Nevada, Plumas, and Sierra counties

(530) 274-9360

Northern Sonoma County APCD

Includes Northern portion of Sonoma County

(707) 433-5911

Placer County APCD

Includes all of Placer County

(530) 745-2330

Sacramento Metro AQMD

Includes all of Sacramento County

(916) 874-4800

San Diego County APCD

Includes all of San Diego County

(858) 586-2600

San Joaquin Valley APCD

Includes all of Fresno, Kings, Madera, Merced, San Joaquin, Stanislaus, 
Tulare, and Valley air basin portions of Kern counties

(559) 230-6000

San Luis Obispo County APCD

Includes all of San Luis Obispo County

(805) 781-5912

Santa Barbara County APCD

Includes all of Santa Barbara County

(805) 961-8800

Shasta County AQMD

Includes all of Shasta County

(530) 225-5674

Siskiyou County APCD

Includes all of Siskiyou County

(530) 841-4025
South Coast AQMD
Includes Los Angeles County except for areas covered by the Antelope
Valley AQMD, Orange County, and the western portion of San Bernardino
and Riverside counties
(909) 396-2000

Tehama County APCD 

Includes all of Tehama County

(530)527-3717

Tuolumne County APCD

All of Tuolumne County

(209) 533-5693

Ventura County APCD

Includes all of Ventura County

(805) 645-1400

Yolo-Solano AQMD

Includes all of Yolo and eastern portion of Solano counties

(530) 757-3650