Bay Area

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 AgencyUpper Valley Waste Management Agency; and West Contra Costa Integrated Waste Management Authority.

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Central Coast

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 AgencySan Luis Obispo County Integrated Waste Management Authority and the Santa Barbara County Regional Integrated Waste Management Reporting Authority.

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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.

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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 AuthorityMerced 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.).

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Coastal North

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.

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Mountain North

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.

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Mountain South

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.

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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.

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Southern California Inland

The Southern California Inland Region consists of Imperial, Riverside, and San Bernardino Counties. There are no CalRecycle-approved regional agencies.

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