FMCSR 383.95(a) Airbrake Restriction Violations: Driver Q&A

Yes, very likely. Across our inspection records, 97.4% of 383.95(a) citations resulted in an out-of-service order. This is dramatically higher than the all-FMCSR average of 31.4% OOS rate, making airbrake restriction violations one of the most enforcement-heavy violations we track. When an officer identifies restricted airbrake operation, expect the truck to be placed OOS on the spot.

First, do not move the truck if it's been placed out of service. Contact your dispatcher and safety manager right away. Second, identify the specific airbrake defect or restriction the inspector documented—this is usually a repair or adjustment order, not a fine. Third, arrange qualified maintenance to address the issue before returning to the road. Because 97.4% of these citations result in OOS placements, repair and reinspection are your only path forward. Keep all documentation from the inspection and repair.

383.95(a) is exceptionally serious. Its 97.4% OOS rate far exceeds peer violations in the Driver Fitness category. For comparison, CDL-class violations (383.23(a)(2)) sit at 98.4% OOS, and medical certificate violations (391.41APC) at 97.1%. However, general physical qualification violations (391.41(a)) carry only 16.2% OOS rates. Our inspection data shows that airbrake restrictions—like CDL and medical violations—trigger immediate removal because they directly prevent safe operation.

This violation is extremely rare in recent enforcement. Across our 13 million+ inspection records, only 273 citations for 383.95(a) have been issued all-time, ranking it #1118 out of 3,036 FMCSR codes. More telling: zero citations were recorded in the last 12 months and zero in the last 90 days. This suggests the violation either occurs very infrequently or most drivers are compliant with airbrake operating restrictions.

Freightliners dominate the citation history, with 30 citations across all records. FRHT (Freightline) variants account for 19 additional citations, followed by Volvo (18), Peterbilt (16), Kenworth (15), and Mack (15). Our data indicates that larger Class 8 tractors and heavy-duty equipment represent the bulk of 383.95(a) violations, likely due to the operational demands placed on their airbrake systems.

The Federal Motor Carrier Safety Administration's DataQs system allows drivers and carriers to challenge inspection findings in the Roadside Inspection Record database. Because 383.95(a) violations are equipment-based findings, contestation focuses on whether the inspection was accurate and whether the documented defect actually existed. If you believe the inspection was performed incorrectly or the airbrake restriction was documented in error, you can file a DataQs challenge with supporting repair or reinspection records. Consult your carrier's safety manager for the formal process.

Four carriers appear twice in our all-time records: US LBM Logistics LLC (USDOT 90308), Swift Transportation Co of Arizona LLC (USDOT 54283), Genesis Logistics Inc (USDOT 914516), and A Better Wash LLC (USDOT 2521963). All other carriers in the dataset have only one citation each. The low volume across all carriers reinforces how infrequent this violation is in modern enforcement.

Both. FMCSA Crash Outcomes Data System (CODS) and carrier safety records track violations at both driver and carrier levels, contributing to their respective BASIC scores under the Compliance, Safety, and Accountability (CSA) program. Because 383.95(a) is in the Driver Fitness category, the citation will appear on your record, but it is also reported under your carrier's safety profile. Work with your safety team to ensure proper resolution and documentation of repairs.