| Air District |
Region Served |
 |
Bay Area AQMD |
San Fransisco Bay, Marin, and Sonoma Counties |
 |
Santa Barbara County APCD |
Santa Barbara County |
 |
San Joaquin Valley
APCD |
San Joaquin, Stanislaus, Merced, Madera, Frenso, Kings, Tulare, and San Joaquin Valley Air Basin portion of Kern County |
 |
South Coast AQMD |
Los Angeles, Orange, Riverside, and San Bernadino Counties |
