Commercial vehicles

Obtain over legal load permits for cars, trucks, and commercial vehicles. Learn more about commercial vehicle restrictions, route maps, transponders, and weigh station e-screening.

Permit program

Please note we cannot issue permits over the phone.

Route & commercial vehicle restrictions

Restrictions and requirements for oversize and overweight commercial vehicles operating on Washington state roadways. Commercial vehicle drivers are responsible for verifying route restrictions, overhead height clearances, and other requirements.

Commercial vehicle permits

Vehicles over legal dimensions and/or weight need a permit before entering the state or moving within the state. Learn how to get a permit to move oversized and overweight loads on state highway systems.

Transponder & weigh station e-screening

E-screening helps safe and legal carriers bypass weigh stations by identifying, weighing, and checking commercial vehicles for violations as they drive. This helps enforcement target high-risk carriers.

Maps & tools for commercial vehicles

Commercial vehicle tools to help with issuing permits and understanding requirements.

Winter driving tips

Slow down on ice and snow.

It's easier to skid or lose control traveling at higher speeds. Give yourself more time to stop.

Carry chains, practice installing them.

Winter conditions could mean chains are required on your route. Practice putting them on your vehicle ahead of time.

Pack your winter car kit.

Carry extra supplies like warm clothing, ice scraper and brush, jumper cables and other emergency items.