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The 3-Step Quick Guide to help you determine which routes your truck may legally travel on.
STEP 1 | STEP 2 | STEP 3 | STEP 4 (Optional) | STEP 5 (Optional)
STEP 1: DETERMINE YOUR TRUCK CATEGORY
The two categories of truck tractor-semitrailers in California are: (1) the "green" trucks (Interstate "STAA" trucks) and (2) the "black" trucks (California Legal trucks). These two tables show the maximum allowed lengths for the two categories of truck tractor-semitrailers.
Truck Tractor - Semitrailers:
28 ft - 6 inch MAX
STEP 2: DETERMINE THE STATE ROUTES YOU CAN USE
The color-coded "CaliforniaTruck Network Map" for State highways is the official government source for truck route information. There are many private truck route guides, e.g., the Rand McNally Motor Carrier Atlas and various GPS systems. However, the accuracy of those private guides cannot be guaranteed, and must be verified by consulting the official "Caltrans Truck Network Map." The table below shows which color routes on the map your truck may legally travel on.
YES -- However, we advise you not to travel on an advisory route unless your KPRA is no more than the posted length, which is 30 feet on most routes.
Signage: These two signs indicate where a "green" STAA truck may travel off the interstates.
STEP 3: DETERMINE THE LOCAL ROADS YOU CAN USE
STEP 4 (OPTIONAL): APPLY FOR A NEW LOCAL TERMINAL ACCESS ROUTE
Terminal Access Application: If your "green" STAA truck cannot travel to your destination legally, and you would like to access that facility in the future, it may be worth it to apply for a new local Terminal Access route. Most State routes have already been evaluated, and are continually evaluated as improvement projects are completed; but many local roads have not been evaluated for STAA access. To apply to a local government to evaluate a local route to be considered for Terminal Access, view the Terminal Acces Application Procedures.
STEP 5 (OPTIONAL): CONFIRM LEGAL LENGTH LIMITS IN THE CA VEHICLE CODE (CVC)
California Legal Truck: The 65-foot maximum length limit for vehicle combinations is codified in CVC Secton 35401 which is copied here in part:
STAA Truck & Routes: The overall length and semitrailer length limits for STAA trucks, and the State and local authority to identify routes, are codified in CVC Section 35401.5(a) which is copied here in part: