The Bay Area Region consists of Alameda, Contra Costa, Marin, Napa, San Francisco, San Mateo, Santa Clara, Solano, and Sonoma Counties. There are five CalRecycle regional agencies: Contra Costa/Ironhouse/Oakley Regional Agency; Marin County Hazardous and Solid Waste Management Authority; Sonoma County Waste Management Agency; Upper Valley Waste Management Agency; and West Contra Costa Integrated Waste Management Authority.
The Central Coast Region consists of Monterey, San Benito, San Luis Obispo, Santa Barbara, and Santa Cruz Counties. There are three CalRecycle-approved regional agencies: San Benito County Integrated Waste Management Regional Agency, San Luis Obispo County Integrated Waste Management Authority and the Santa Barbara County Regional Integrated Waste Management Reporting Authority.
Central Valley North
The Central Valley North Region consists of Butte, Colusa, Glenn, Placer, Sacramento, Shasta, Sutter, Tehama, Yolo, and Yuba Counties. There are seven CalRecycle-approved regional agencies: Butte Regional Waste Management Authority; Colusa County Regional Agency; Glenn County Waste Management Regional Agency; Sacramento County/City of Citrus Heights Regional Agency; Shasta County Waste Management Agency; Tehama County Sanitary Landfill Regional Agency; and Yuba/Sutter Regional Waste Management Authority.
Central Valley South
The Central Valley South Region consists of Fresno, Kern, Kings, Madera, Merced, San Joaquin, Stanislaus, and Tulare Counties. There are four CalRecycle-approved regional agencies: Kings Waste and Recycling Authority; Merced County Solid Waste Regional Agency, Stanislaus County Regional Solid Waste Planning Agency, and Consolidated Waste Management Authority of Tulare County.
There is one transformation (waste-to-energy) facility in the region which is located in Stanislaus County (Ogden Martin Systems of Stanislaus, Inc.).
The Coastal North Region consists of Del Norte, Humboldt, Lake, and Mendocino Counties. There is Del Norte Solid Waste Management Authority, the only CalRecycle-approved regional agency in the Coastal North Region.
The Mountain North Region consists of Lassen, Modoc, Nevada, Plumas, Sierra, Siskiyou, and Trinity Counties. There are three CalRecycle approved regional agencies: Lassen Regional Agency; Sierra County Regional Agency; and Siskiyou County Integrated Solid Waste Management Regional Agency.
The Mountain South Region consists of Alpine, Amador, Calaveras, El Dorado, Inyo, Mariposa, Mono, and Tuolumne Counties. There are three CalRecycle-approved regional agencies: Amador County Regional Waste Management Authority; Calaveras County Regional Agency; and Inyo Regional Waste Management Agency.
Southern California Coastal
The Southern California Coastal Region consists of Los Angeles, Orange, San Diego, and Ventura Counties. There is one CalRecycle-approved regional agency, the Los Angeles Area Integrated Waste Management Authority.
There are two transformation (waste-to-energy) facilities in the region, both located in Los Angeles County: Commerce Refuse-To-Energy Facility and South East Resource Recovery Facility.
Southern California Inland
The Southern California Inland Region consists of Imperial, Riverside, and San Bernardino Counties. There are no CalRecycle-approved regional agencies.