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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.

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A picture of a Bypass sign and 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

Learn about technology that improves commercial vehicle safety by focusing on high-risk carriers.

Contact information

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

Learn more about work zone safety

Slow down – lives are on the line.

Drive the posted speeds, they’re there for your safety.

Phone down, eyes up.

Pay attention – both to workers directing you and to surrounding traffic.

Stay calm

Expect delays, leave early or take an alternate route if possible; no appointment is worth risking someone’s life.