California Air Districts

California's 35 local Air 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
Air Pollution Complaints | Public Notices

Antelope Valley AQMD
Includes northeast portion of Los Angeles County

(661) 723-8070
Air Pollution Complaints | Public Notices

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
Air Pollution Complaints | Public Notices

Butte County AQMD
Includes all of Butte County

(530) 332-9400
Air Pollution Complaints | Public Notices

Calaveras County APCD
Includes all of Calaveras County

(209) 754-6399
Public Notices

Colusa County APCD
Includes all of Colusa County

(530) 458-0590
Air Pollution Complaints | Public Notices

Eastern Kern APCD
Includes eastern portion of Kern County

(661) 862-5250
Air Pollution Complaints | Public Notices

El Dorado County AQMD
Includes all of El Dorado County

(530) 621-7501
Air Pollution Complaints | Public Notices

Feather River AQMD
Includes all of Sutter and Yuba counties

(530) 634-7659
Air Pollution Complaints | Public Notices

Glenn County APCD
Includes all of Glenn County

(530) 934-6500
Air Pollution Complaint | Public Notices

Great Basin Unified APCD
Includes all of Alpine, Inyo, and Mono counties

(760) 872-8211
Air Pollution Complaints | Public Notices

Imperial County APCD
Includes all of Imperial County

(442) 265-1800
Air Pollution Complaints | Public Notices

Lake County AQMD
Includes all of Lake County

(707) 263-7000
Air Pollution Complaints | Public Notices

Lassen County APCD
Includes all of Lassen County

(530) 252-4247
Air Pollution Complaints | Public Notices

Mariposa County APCD
Includes all of Mariposa County

(209) 966-3689
Air Pollution Complaints | Public Notices

Mendocino County AQMD
Includes all of Mendocino County

(707) 463-4354
Air Pollution Complaints | Public Notices

Modoc County APCD

Includes all of Modoc County

(530) 233-6401

Air Pollution Complaints

Mojave Desert AQMD
Includes the Northern portion of San Bernardino County, and the eastern
portion of Riverside County

(760) 245-1661
Air Pollution Complaints | Public Notices

Monterey Bay Air Resources District
Includes all of Monterey, San Benito, and Santa Cruz counties

(831) 647-9411
Air Pollution Complaints | Public Notices

North Coast Unified AQMD
Includes all of Del Norte, Humboldt, and Trinity counties

(707) 443-3093
Air Pollution Complaints | Public Notices

Northern Sierra AQMD
Includes all of Nevada, Plumas, and Sierra counties

(530) 274-9360
Air Pollution Complaints | Public Notices

Northern Sonoma County APCD
Includes Northern portion of Sonoma County

(707) 433-5911
Air Pollution Complaints

Placer County APCD
Includes all of Placer County

(530) 745-2330
Air Pollution Complaints

Sacramento Metro AQMD
Includes all of Sacramento County

(279) 207-1122
Air Pollution Complaints | Public Notices

San Diego County APCD
Includes all of San Diego County

(858) 586-2600
Air Pollution Complaints

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
Air Pollution Complaints | Public Notices

San Luis Obispo County APCD
Includes all of San Luis Obispo County

(805) 781-5912
Air Pollution Complaints | Public Notices

Santa Barbara County APCD
Includes all of Santa Barbara County

 (805) 979-8050
Air Pollution Complaints | Public Notices

Shasta County AQMD
Includes all of Shasta County

(530) 225-5674
Air Pollution Complaints | Public Notices

Siskiyou County APCD
Includes all of Siskiyou County

(530) 841-4025
Air Pollution Complaints | Public Notices

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
Air Pollution Complaints | Public Notices

Tehama County APCD
Includes all of Tehama County

(530) 527-3717
Air Pollution Complaints | Public Notices

Tuolumne County APCD
Includes all of Tuolumne County

(209) 533-5693
Air Pollution Complaints

Ventura County APCD
Includes all of Ventura County

(805) 303-4005
Air Pollution Complaints | Public Notices

Yolo-Solano AQMD
Includes all of Yolo and the eastern portion of Solano counties

(530) 757-3650
Air Pollution Complaints | Public Notices