| Regulatory Office |
Counties within Area of Responsibility |
| Sacramento District HQ Office |
Butte, Sierra, Yuba, Lake, Glenn, Nevada, Colusa, Placer, Sutter, El Dorado, Alpine, Yolo, Sacramento, Mono, Amador, Solano, Calaveras, Tuolumne, San Joaquin, Contra Costa, Stanislaus, Alameda, Mariposa, Madera, Merced, Fresno, Tulare, Kings, Kern |
| Redding Field Office |
Modoc, Shasta, Lassen, Tehama, Plumas |
| Reno Field Office |
Elko, Humboldt, Washoe, Lander, Eureka, Pershing, Churchill, Lyon, Storey, Carson City, Douglas, Mineral, Esmeralda, White Pine, Nye, Lincoln, Clark, Tahoe Basin. |
| Bountiful Field Office |
Rich, Box Elder, Cache, Weber, Morgan, Summit, Davis, Tooele, Salt Lake, Duchesne, Wasatch, Utah, Juab, Carbon, Sanpete, Emery, Millard, Sevier, Daggett, Uintah, Grand, Beaver, Plute, Wayne, Garfield, Iron, Washington, Kane, San Juan |