California County Abbreviations
| ALA | Alameda | MEN | Mendocino | SF | San Francisco |
| ALP | Alpine | MER | Merced | SHA | Shasta |
| AMA | Amador | MNO | Mono | SIE | Sierra |
| BUT | Butte | MOD | Modoc | SIS | Siskiyou |
| CAL | Calaveras | MON | Monterey | SJ | San Joaquin |
| CC | Contra Costa | MPA | Mariposa | SLO | San Luis Obispo |
| COL | Colusa | MRN | Marin | SM | San Mateo |
| DN | Del Norte | NAP | Napa | SOL | Solano |
| ED | El Dorado | NEV | Nevada | SON | Sonoma |
| FRE | Fresno | ORA | Orange | STA | Stanislaus |
| GLE | Glenn | PLA | Placer | SUT | Sutter |
| HUM | Humboldt | PLU | Plumas | TEH | Tehama |
| IMP | Imperial | RIV | Riverside | TRI | Trinity |
| INY | Inyo | SAC | Sacramento | TUL | Tulare |
| KER | Kern | SB | Santa Barbara | TUO | Tuolumne |
| KIN | Kings | SBD | San Bernadino | VEN | Ventura |
| LA | Los Angeles | SBT | San Benito | YOL | Yolo |
| LAK | Lake | SCL | Santa Clara | YUB | Yuba |
| LAS | Lassen | SCR | Santa Cruz | ||
| MAD | Madera | SD | San Diego |
CONTACTS
Caltrans Legal Truck Size & Weight Work Group
Casey Robb
Manuel Fonseca
General number (916) 654-5741
E-mail: Truck Size & Weight Unit.
Return to the Caltrans "Truck Network Map" page.
Return to the Caltrans "Office of Truck Services " page.
Revised 12/10/07.