These workshops primarily serve the counties of Marin County, Sonoma County, Napa County, Lake County, Mendocino County, Solano County, Contra Costa County, Alameda County, Santa Clara County, San Mateo County, Santa Cruz County, San Benito County, Monterey County, Alpine County, Amador County, Butte County, Calaveras County, Colusa County, Del Norte County, El Dorado County, Fresno County, Glenn County, Humboldt County, Kern County, Lake County, Lassen County, Modoc County, Nevada County, Placer County, Plumas County, Sacramento County, Shasta County, Sierra County, Siskiyou County, Sutter County, Tehama County, Trinity County, Yolo County, Yuba County, and San Francisco County.