Brake Lining/Pad Data
This year, emphasis was placed on brake lining/pad health and safety. Brake lining/pad issues may result in violations or out-of-service conditions and may affect a motor carrier’s safety rating. Inspectors found 108 power units and 66 towed units with lining/pad violations.
A total of 114 brake lining/pad violations were discovered on power units. The top brake lining/pad violation on power units was for contamination, with 48 violations.
Seventy-one brake lining/pad violations were identified on towed units. Twenty-three of the violations were for cracks/voids in the linings/pads – the top brake lining/pad violation on towed units.
| Violation Description | Power Unit | Towed Unit | Power/Towed Units Combined |
| Contaminated | 48 | 14 | 62 |
| Cracks/Voids | 28 | 23 | 51 |
| Worn | 28 | 21 | 49 |
| Loose/Missing | 10 | 13 | 23 |
| Total Violations | 114 | 71 | 185 |
PBBT Data
Nine U.S. jurisdictions with performance-based brake testers (PBBT) utilized them during Brake Safety Day. A PBBT is a machine that assesses the braking performance of a vehicle. U.S. Federal Motor Carrier Safety Regulations and CVSA’s North American Standard Out-of-Service Criteria require a minimum braking efficiency of 43.5%. If the vehicle’s braking efficiency is below 43.5%, it’s not providing the minimum stopping power required and needs to be serviced.
Eighty-eight PBBT inspections were conducted on Brake Safety Day. Four (4.5%) failed to meet the 43.5% minimum braking efficiency required and were placed out of service.