FMCSA Carrier Compliance Index (2026)

Last reviewed May 7, 2026 · By Chad Griffith

The FMCSA's published 2024 national averages remain the operational benchmark for motor carrier safety performance: vehicle out-of-service rate 20.72%, driver out-of-service rate 5.51%, hazmat OOS rate 4.50%. These averages, which carriers are compared against during CSA Behavior Analysis and Safety Improvement Category (BASIC) calculations, form the backbone of FMCSA's risk-targeting model under the Safety Measurement System. This analysis combines the published 2024 averages with FMCSA's own published top-violation data, intervention threshold percentiles, and 2026 inflation-adjusted penalty schedules to produce an operational reference for fleet operators, compliance professionals, and insurance underwriters.

FMCSA 2024 National Averages (Published Reference Data)

The Federal Motor Carrier Safety Administration publishes annual national averages used as the reference baseline in CSA percentile rankings and as the standard cited on individual carrier inspection reports. The 2024 published averages, which remain in effect for 2025-2026 CSA scoring:

FMCSA continues to display the 2009-2010 baseline as the reference period on individual carrier snapshots — a quirk of the original SMS Methodology that has been the subject of motor carrier industry advocacy for updates. Carriers are evaluated against these baselines when their CSA BASIC percentiles are calculated.

CSA Intervention Threshold Percentiles

FMCSA's Safety Measurement System ranks carriers within peer groups (cohorts of similar carriers) and triggers FMCSA enforcement when carriers exceed defined intervention threshold percentiles. The thresholds vary by Behavior Analysis and Safety Improvement Category (BASIC) and carrier classification:

Source: FMCSA SMS Methodology, available at csa.fmcsa.dot.gov. Carriers exceeding these thresholds in one or more BASICs may receive warning letters, off-site compliance reviews, on-site comprehensive reviews, or new entrant safety audit failures depending on severity.

Most-Cited FMCSA Violations

FMCSA publishes top-cited violation data through its Inspector General reports and annual program reviews. The most-frequently cited categories during roadside inspections, derived from FMCSA's own reporting and the public Socrata inspection dataset (data.transportation.gov resource fx4q-ay7w):

1. 49 CFR 396.3(a)(1) — Failure to inspect, repair, and maintain vehicle. Often the top-cited Vehicle Maintenance violation.
2. 49 CFR 393.45(b)(1) — Brake hose damage / tubing damage. Recurring in Vehicle Maintenance citations.
3. 49 CFR 393.75(a)(3) — Tire condition (under 2/32" tread on steer axle).
4. 49 CFR 392.2 — Driving under hazardous conditions / failure to use due caution.
5. 49 CFR 395.8(e) — False record of duty status / falsifying ELD records.
6. 49 CFR 391.41 — Driver lacks valid medical certificate.
7. 49 CFR 396.7(b) — Operating defective vehicle (post-inspection).
8. 49 CFR 392.7 — Failure to inspect equipment (pre-trip).
9. 49 CFR 393.55 — Defective brakes — automatic adjustment / brake stroke beyond limit.
10. 49 CFR 393.95(a) — Inadequate emergency equipment (fire extinguisher, warning devices, spare fuses).

Source: aggregated from FMCSA's published top-10 violation reports and the Socrata inspection dataset queries. Specific frequency varies year-to-year but the top categories remain stable across multiple years of FMCSA reporting.

2026 FMCSA Penalty Schedule

Civil penalties under 49 CFR Part 386 are inflation-adjusted annually under the Federal Civil Penalties Inflation Adjustment Act Improvements Act of 2015. The 2026 inflation-adjusted maximum penalties:

Source: 49 CFR 386 Appendix B, as updated by the FMCSA's 2025 inflation adjustment final rule applying to violations occurring on or after January 15, 2025. Penalties are typically assessed by the number of violations identified, so a single compliance review can generate compounding penalties when multiple recordkeeping or operational deficiencies are identified.

FileFlo Analysis: What This Means for a Mid-Size Carrier

For a mid-size motor carrier (20-100 power units, 30-200 drivers), FMCSA's 2024 averages and CSA thresholds combine to create operational pressure points worth monitoring monthly:

• Vehicle OOS Rate target: below 15% to maintain healthy margin from the 80th-percentile Vehicle Maintenance threshold. Carriers above 25% routinely face FMCSA enforcement.
• Driver OOS Rate target: below 4% — the 5.51% national average is itself elevated for what FMCSA considers a well-managed driver program. Driver OOS is heavily HOS-driven, so ELD discipline is the biggest lever.
• Recordkeeping completeness: the per-driver penalty exposure ($1,099-$11,000 per missing document) means a 50-driver fleet missing one DQF document per driver could face $55,000-$550,000 in compounding penalties during a compliance review. Documentation completeness is the highest-impact prevention investment.
• Clearinghouse queries: annual queries cost a few dollars each through Clearinghouse; the missing-query penalty is $6,386 per driver per missed query. The math is asymmetric — automate query tracking, never miss one.
• Most-cited categories ranked by enforcement risk: driver fitness (medical cards, CDLs) > vehicle maintenance (brakes, tires, lights) > HOS compliance (ELD, falsification) > controlled substances/alcohol. Driver fitness violations can put a driver out-of-service immediately during a roadside inspection.

FleeFlo's analysis approach: take the published FMCSA averages as the floor, then internally target performance 25-30% better than the average to maintain healthy buffer against intervention threshold percentiles. A carrier hitting average performance is at the 50th percentile peer ranking — at-risk in any BASIC where the threshold drops to 65th percentile (Unsafe Driving, HOS, Driver Fitness, Crash Indicator).

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