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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.

A collage of two images. The image on the left is a bypass weigh station sign on the side of a roadway with the word bypass highlighted in green, indicating that a vehicle can bypass the weigh station. the image on the right is a WSDOT transponder.
Drivers can buy transponders (right) to get electronically screened and bypass weigh stations.

 

Buy a transponder

Learn how to buy a transponder for a commercial vehicle, a tool that allows the vehicles to be electronically screened and  lets eligible drivers bypass weigh stations.

Register a transponder

Learn how to register, update, transfer or add a transponder for your commercial vehicle.

Transponder program & benefits

Learn about the transponder program, which allows commercial vehicles to bypass weigh stations by electronically verifying the legal weight, safety rating, and credentials as the commercial vehicle continues down the road at freeway speeds.

Transponder support & questions

Find technical support and answers to your questions about transponders, including troubleshooting tips and other helpful information.

Weigh station e-screening technology

Find out how we're using technology to improve commercial vehicle safety for more than 33,000 trucking companies with more than 245,000 transponder-equipped vehicles.

Contact information

Commercial Vehicle Services
Transponder Administration
TransponderAdmin@wsdot.wa.gov
888-877-8567

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Learn more about work zone safety

Slow down – lives are on the line. 

In 2023, speeding continued to be a top reason for work zone crashes.

Even one life lost is too many.

Fatal work zone crashes doubled in 2023 - Washington had 10 fatal work zone crashes on state roads.

It's in EVERYONE’S best interest.

95% of people hurt in work zones are drivers, their passengers or passing pedestrians, not just our road crews.