What should drivers expect at a weigh station stop?

AskWaves checks in with CVSA on the latest truck inspection procedures

Trucks lining up at weigh station in Greenwich Township, N.J., February 2017. (Photo: Mel Evans/AP).

Unless a truck is equipped with a bypass preclearance device, most states require commercial vehicles weighing over 10,000 pounds to stop at every weigh station along the truck’s route. What can a driver expect at a station?

In addition to rolling over a weigh-in-motion scale to ensure the truck is operating under federal and/or state weight limits, drivers should be prepared for some level of inspection. And it usually starts as soon as the truck enters the facility.

“When you’re reporting to a weigh station, there’s a handful of things that are likely being checked before you even get to the scales,” Collin Mooney, executive director of the Commercial Vehicle Safety Alliance (CVSA), told FreightWaves.

“As the vehicles are on the approach ramp, there are license plate readers and [Department of Transportation number] readers all being captured and run against databases for motor carrier safety ratings and scores. It’s something drivers won’t see because it’s occurring on the back-end administrative side of things.”

As vehicles roll over the scale, Mooney explained, inspectors are also looking at the overall condition of the vehicle, such as tires, how cargo is being secured and lights. The driver may then be told to move to another area for a more thorough inspection — Level 1 (full), Level 2 (walk-around), or Level 3 (driver-only).

“I would say the large majority of inspections will be Level 1,” Mooney said. “Once the truck is pulled around back, the inspector will start off looking at the driver’s hours-of-service records. The inspector then can make the decision of whether to do just a Level 3, bump it up to a Level 2, or a full Level 1.”


U.S. roadside inspection activity FY2021*

Inspection levelFederalStateTotal
Level 1 (full)25,848846,951872,799
Level 2 (walk-around)2,923992,316995,239
Level 3 (driver only)2,880893,391896,271
Level 4 (special study)011,24611,246
Level 5 (terminal/vehicle only)912100,319101,231
Level 6 (radioactive materials)0603603
Total32,5632,844,8262,877,389
Driver out-of-service rate1.98%5.93%5.89%
Vehicle out-of-service rate18.02%21.15%21.10%
Hazmat out-of-service rate4.65%4.39%4.40%
*Oct. 1, 2020 – Sept. 30, 2021. Source: FMCSA

An exception to a Level 1-3 inspection would be when a state is doing a special check for something specific, such as an hours-of-service check, Mooney noted, considered a Level 4 inspection.

Because states have different laws and safety guidelines regulating truck weights, drivers can expect to encounter weigh stations near state borders, points out the New England Tractor Trailer Training School (NETTTS). The training school notes that many states also use portable scales that allow weigh stations to be set up in any location that is large enough to accommodate trucks.

“Portable scales allow DOT and state inspectors to set up seasonal and temporary check points near isolated roads with a high amount of truck traffic,” according to NETTTS. “Temporary check points also help prevent truck drivers from avoiding weigh stations.”

The school warns that drivers who decide not to stop risk being pulled over by law enforcement waiting near the highway reentry ramp. They could then be ticketed and required to return to the scale.

The Federal Motor Carrier Safety Administration recently began a study on weigh station bypass/preclearance systems to assess the safety benefits to the trucking industry, including crash reduction, injuries avoided and lives saved. An FMCSA source said the study has not yet been completed.

Click for more FreightWaves articles by John Gallagher.

Upcoming FreightWaves Events
Compliance

Brokerage Compliance Symposium

The day before F3. Every compliance issue you face - fraud exposure, carrier liability, FMCSA rules, cargo theft, insurance gaps - navigated by attorneys and operators defining best practices in a changing industry.

October 26, 2026
The Signal at Chattanooga Choo Choo • Chattanooga, TN
Register Now
Awards

F3 Awards Dinner

The night before F3. FreightTech100 companies honored. FreightTech 25 and Shipper of Choice winners revealed live. Cocktail reception into dinner and live music - 300 industry leaders in one purpose-built room.

October 26, 2026
The Signal at Chattanooga Choo Choo • Chattanooga, TN
Register Now
FreightTech

F3: Future of Freight Festival

Industry-defining keynotes, rapid-fire technology demos, and industry leaders networking in experiences across Chattanooga - plus the inaugural F3 Awards Dinner featuring the FreightTech and Shipper of Choice reveals.

October 27, 2026 – October 28, 2026
The Signal at Chattanooga Choo Choo • Chattanooga, TN
Register Now
Compliance Brokerage Compliance Symposium Oct 26 • The Signal at Chattanooga Choo Choo • Chattanooga, TN

The day before F3. Every compliance issue you face - fraud exposure, carrier liability, FMCSA rules, cargo theft, insurance gaps - navigated by attorneys and operators defining best practices in a changing industry.

The Signal at Chattanooga Choo Choo • Chattanooga, TN Register Now
Awards F3 Awards Dinner Oct 26 • The Signal at Chattanooga Choo Choo • Chattanooga, TN

The night before F3. FreightTech100 companies honored. FreightTech 25 and Shipper of Choice winners revealed live. Cocktail reception into dinner and live music - 300 industry leaders in one purpose-built room.

The Signal at Chattanooga Choo Choo • Chattanooga, TN Register Now
FreightTech F3: Future of Freight Festival Oct 27 – Oct 28 • The Signal at Chattanooga Choo Choo • Chattanooga, TN

Industry-defining keynotes, rapid-fire technology demos, and industry leaders networking in experiences across Chattanooga - plus the inaugural F3 Awards Dinner featuring the FreightTech and Shipper of Choice reveals.

The Signal at Chattanooga Choo Choo • Chattanooga, TN Register Now

John Gallagher

Based in Washington, D.C., John specializes in regulation and legislation affecting all sectors of freight transportation. He has covered rail, trucking and maritime issues since 1993 for a variety of publications based in the U.S. and the U.K. John began business reporting in 1993 at Broadcasting & Cable Magazine. He graduated from Florida State University majoring in English and business.