California Legal Trucks and Routes
California legal trucks can travel on STAA, California legal, and advisory routes, with certain restrictions. They operate on most state highways with a few exceptions, such as prohibited red routes.
The key differences between green STAA and black California legal trucks lie in their lengths and designated routes. STAA trucks have a 53-foot maximum length and predominantly run on interstates. In contrast, California legal trucks have a 40-foot length limit and can operate on any state route.
Truck Regulations in California
To operate legally in California with a truck, it is essential to determine if your vehicle falls under the category of a green STAA or a black California legal truck. This classification determines the length restrictions applicable to your truck.
For black trucks, the kingpin-to-rearmost-axle (KPRA) limit is 40 feet for two-axle trailers and 38 feet for single-axle trailers. Green trucks, on the other hand, can accommodate larger trailers, with KPRA limits allowing 48-foot two-axle and 53-foot multiple rear axle trailers.
Speed Limit and Trailer Regulations
When towing a trailer in California, the maximum speed limit is set at 55 mph unless otherwise indicated. The state also permits triple towing, with a total of three vehicles allowed. Spread axle trailers are considered legal as long as the kingpin-to-rear axle distance does not exceed 41 feet.
Transition to Zero-Emission Vehicles
By 2036, California will mandate that truck manufacturers exclusively sell zero-emission heavy-duty and medium-duty models. Additionally, large fleets will be required to transition to electric trucks within the same timeframe. The ultimate goal is to achieve 100% zero-emission trucks on the roads by the year 2045.