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FMCSA · SAFETY STATISTICS

What puts trucks and drivers out of service?

The most frequent out-of-service violations in our indexed FMCSA inspection records, ranked by violation code.

Inspection coverage: – Report refreshed: Violation source updated:
Recorded violations13,594,393
Out-of-service violations2,416,602
Violation codes2,379

All violation codes

Highest OOS count first. Codes with no recorded OOS occurrences appear last.

All violation codes
Violation codeDescriptionOOS occurrencesAll occurrencesShare of all OOS
177.804B2Failure to comply with 49 CFR Section 392.80 Texting While Operating a CMV when transporting select agents or toxins or HM requirement Placarding020.0%
177.804B3Failure to comply with 49 CFR Section 392.82 Using a Handheld Mobile Phone While Operating a CMV when transporting select agents or toxins or HM requiring placard01180.0%
177.816-HMTMCHM (Training) - Motor carrier failed to train driver in applicable safety and HM requirements.0290.0%
177.817E1-HMHCHM (Highway Carriage) - Failing to clearly distinguish HM shipping papers from other papers of any kind01,0320.0%
177.817F-HMHCHM (Highway Carriage) - Failing to retain a shipping paper copy or an electronic image thereof, that is accessible at or through its principal place of business a0150.0%
177.823A-HMPMCNP-L6-2HM (Placarding) - Missing required background - Highway route - controlled quantity radioactive material must have the required RADIOACTIVE warning placards pla020.0%
177.834CSmoking while loading or unloading Class 1, Class 3, Class 4, Class 5, or Division 2.1 Hazardous Material020.0%
177.834H-HMHCHM (Highway Carriage) - Failing to use precautions concerning containers in transit.0320.0%
177.834I-HMHCHM (Highway Carriage) - Failing to comply with attendance requirements for loading/unloading.060.0%
177.834M-HMHCHM (Highway Carriage) - Failing to comply with loading requirements for multi-unit tank car tanks010.0%
177.835Improper transportation of explosives (Class 1)010.0%
177.835E-HMHCHM (Highway Carriage) - Transporting sharp projections inside of vehicle transporting Class 1 material.010.0%
177.835H-HMHCHM (Highway Carriage) - Transporting Class 1 material in vehicle not covered and secured or tailgate closed010.0%
177.837A-HMHCHM (Highway Carriage) - Class 3 material may not be loaded into, or on, or unloaded from any cargo tank motor vehicle while the engine is running.030.0%
177.839-HMHCHM (Highway Carriage) - Improper transportation of Class 8 material.0180.0%
177.840LNo or improper Emergency Operating Procedures for cargo tanks0220.0%
177.840L-HMHCHM (Highway Carriage) - No or improper Emergency Operating Procedures for cargo tanks0520.0%
177.840M-HMHCHM (Highway Carriage) - Failing to perform cargo tank motor vehicle safety check prior to unloading010.0%
177.840OFail to test off-truck remote shutoff device on a daily basis0170.0%
177.840O-HMHCHM (Highway Carriage) - Failing to test off-truck remote shutoff device on a daily basis0480.0%
177.840P-HMHCHM (Highway Carriage) - Failing to follow proper unloading procedures for liquified petroleum gas or anhydrous ammonia in metered delivery service010.0%
177.840SFail to possess remote shutoff when unloading020.0%
177.840S-HMHCHM (Highway Carriage) - Failing to possess remote shutoff when unloading0110.0%
177.842ATotal Transport Index exceeds 50 (non-exclusive use)010.0%
177.842BViolation of minimum distance from RAM package to any person or animal010.0%
177.854D-HMHCHM (Highway Carriage) - Failing to repair damaged container as required050.0%
178.245-5-HMPHM (Packaging) - DOT 51 improper valve protection.010.0%
178.245-6DOT51 ID plate030.0%
178.245-6ADOT51 name plate markings010.0%
178.251-7BDOT56/57 spec markings010.0%
178.255-11-HMPHM (Packaging) - DOT 60 tank mountings.010.0%
178.255-14-HMPHM (Packaging) - DOT 60 ID plate.010.0%
178.255-1-HMPHM (Packaging) - DOT 60 fail to comply with general requirements.010.0%
178.255-4-HMPHM (Packaging) - DOT 60 requirements for closures.010.0%
178.255-7DOT60 valve protection010.0%
178.270-12-HMPHM (Packaging) - IM 101/102 requirements for valves, nozzles, piping and gauging devices020.0%
178.270-4IM 101/102 Structural integrity010.0%
178.270-6IM 101/102 frames020.0%
178.270-6-HMPHM (Packaging) - IM 101/102 requirements for tanks supports, frameworks and lifting attachments040.0%
178.32CMIM101/102 load securement030.0%
178.336-9ASafety relief devices MC3300200.0%
178.336-9CMarking of inlets/outlets MC330010.0%
178.337-10MC331 Accident damage protection020.0%
178.337-10AMC331 Protection of fittings030.0%
178.337-10A-HMPHM (Packaging) - MC 331 protection of fittings.010.0%
178.337-10B-HMPHM (Packaging) - MC 331 protection device/housing not as required.040.0%
178.337-10C-HMPHM (Packaging) - MC 331 rear-end tank protection.010.0%
178.337-11A2IIRemote control <3500 gal MC331010.0%
178.337-17AMC331 Metal identification plate missing070.0%
178.337-17A-HMPHM (Packaging) - MC 331 general marking requirements.0290.0%

How to read this report

Each indexed violation identity counts once. Only a violation explicitly marked out of service contributes to the OOS count. Repeated copies are counted once; conflicting code or OOS values are excluded. Unknown flags remain in all occurrences but not in the OOS count. Missing codes appear as “Code not reported”.

These are violation counts, not unique inspections, trucks, drivers, or carrier-wide out-of-service orders. Coverage describes the currently indexed inspection dataset, not all historical FMCSA records. Frequencies do not establish crash causation or a carrier’s safety rating.

Unknown OOS flags: 112 · Conflicting records excluded: 0

FMCSA source data ↗