How To Pass Roadside Inspections During CVSA Brake Safety Week

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Last year’s CVSA Brake Safety Week found 13.5% of commercial motor vehicles inspected had brake-related violations and were placed out-of-service.

The annual CVSA Brake Safety Week enforcement blitz is scheduled for August 23-29, 2020.

Enforcement officials will inspect commercial motor vehicles during this time and place vehicles out-of-service (OOS) until any critical OOS brake or other violations are corrected. Vehicles that pass may receive a passed-inspection CVSA decal.

“Brakes are one of the most important systems in a vehicle,” said CVSA President Sgt. John Samis with the Delaware State Police. “Failure of any component of a brake system could be catastrophic. Routine brake system inspections and component replacement are vital to the safety of commercial motor vehicles.”

2019 CVSA International Roadcheck and Brake Safety Week Results

According to the US federal regulations and the North American Standard Out-of-Service Criteria, if your brake system efficiency falls below the minimum of 43.5%, your vehicle will be put out-of-service.

Brake system and brake adjustment violations during last year’s International Roadcheck inspection accounted for 45.1% of all OOS conditions. That was more than any other vehicle violation category.

Last year’s Brake Safety Week found that 13.5% of commercial motor vehicles inspected had brake-related violations and were placed out-of-service.

Review the Brake Safety Results in one of last year’s unannounced inspections

More recently, according to The Truckers Report, Nebraska had an unannounced truck inspection blitz in mid-July that found 43% of the vehicles inspected were placed out-of-service. During this surprise inspection, drivers face up a total of $7,315 in fines from the 384 violations documented.

What is covered in a roadside brake safety truck inspection?

Inspectors will be paying special attention to brake hoses and tubing, which must be properly attached, undamaged, without leaks, appropriately flexible, and free of leaks, corrosion, and any other type of damage.


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At roadside, brake inspections include visual checks as well as an air brake test using a performance-based brake tester (PBBT) in the 14 jurisdictions where it is available. The performance-based air brake test measures the slow speed brake force and weight at each wheel and uses those measurements to determine the efficiency of the braking system.

As long as the brake system efficiency stays above 43.5%, the vehicle will not be placed out-of-service, unless another critical OOS violation is found.

How can I prepare for a truck inspection of my air brakes?

If you know your brake system you are more likely to know if there is an issue. You should know what size and type of air brake chamber you have and learn how to properly identify it.

Most air brake chambers will have a marking on them, letting you know what type and size it is. If you know the type of chamber you have, you will also be able to determine the maximum allowable push rod travel for that brake chamber and whether it is in or out of adjustment.

You should inspect your air brake system and all brake components regularly during your pre and post-trip inspection to keep your vehicle in safe operating condition.

The list below covers some items you can visually check on a regular basis to ensure they are securely attached, leak-free, and free of damage, such as corrosion and holes.

  • Air brake chamber
  • Brake hoses and tubing
  • Cotter pins
  • Clevis pins
  • Slack adjuster
  • Air lines

The CVSA has answered some frequently asked questions about your air brake system and inspection and have also provided an air brake inspection checklist, which is a great way to be sure you are prepared for your roadside safety inspection.

In addition to being prepared for a brake inspection, it is even more important to be prepared for a complete truck inspection.


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