Carrier profile · USDOT 3053367 · MC-51043 · Updated Aug 4, 2026

MM Brothers Inc

135 power unitsavg 5.2 yrNational · 39 statesNAPERVILLE, IL81/100
CARRIER ACTIVEMC-51043 ACTIVE
Verified linksFMCSA SAFER

Safety

Roadside out-of-service rates versus the national benchmark, inspection and crash trends, decoded violation themes, and ELD / hours-of-service integrity — the full safety picture behind the verdict.

Out-of-service rate· 24-mo cumulative · vs national

Vehicle OOS 28.4%24-mo cumulative
050%nat'l 22.26%
Driver OOS 6.1%24-mo cumulative
030%nat'l 6.67%

Every inspection in the window pooled — 81 vehicle and 163 driver inspections over 24 months.

Vehicle OOS rate· vehicle OOS · vehicle-level inspections · 6-month trailing

29.7% · latest 6-mo window▲ Rising

Share of vehicle-level roadside inspections in each trailing six-month window that resulted in a vehicle out-of-service order. Trending up 7.4 pts across the window. The national vehicle benchmark uses the same metric and is shown on the chart.

Roadside inspection history· 24 charted calendar months · vehicle / driver level · any-OOS overlay

160 inspections in the charted months · busiest month Jul '26 · 14

Vehicle-levelDriver-levelAny OOS

Monthly FMCSA roadside inspections across the 24 charted calendar months. Bars show level-qualified vehicle and driver populations; one inspection can qualify for both. The line shows inspections with any out-of-service result.

Inspection coverage· expected vs observed · the fraud signal

Inspection coverage

How heavily FMCSA inspects this fleet for its size — it tells you how much to trust the safety signals above. Thin coverage on a young authority is a fraud signal nobody else surfaces.

Expected band
Under-inspected
Expected
Well-monitored
Heavily inspected
≈0.6 / unit·yr
thin signalabundant signal
Roadside-inspection volume is about what you'd expect for a 135-unit fleet — enough signal to read the safety record, though not a heavy sample.
Registered power units
135
Inspections · 24 mo
163
Annualized
≈82 / yr
Coverage
≈0.6 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

81%
Unsafe Driving
Vektor peer est.
49%
Hours-of-Service
Vektor peer est.
80%
Driver Fitness
Vektor peer est.
Controlled Substances
0violations
clean · per-BASIC
57%
Vehicle Maintenance
Vektor peer est.

Percentile = standing among same-exposure peers (higher = worse). FMCSA publishes percentiles for only some carriers (shown official); elsewhere we show a Vektor peer-percentile estimate, or the absolute SMS measure when there are too few inspections to rank.

Violation themes· decoded · grouped by BASIC

What this carrier actually gets cited for — FMCSA violation codes decoded into plain English, ranked by frequency.

  • 392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving62 · 0 OOS
  • 393.75 Tires (defective / underinflated / worn)Vehicle Maintenance17 · 11 OOS
  • 393.9 Inoperative required lampsVehicle Maintenance14 · 2 OOS
  • 392.9 Failure to secure load / cargo not securedUnsafe Driving7 · 5 OOS
  • 393.45 Brake tubing / hose defectsVehicle Maintenance7 · 0 OOS
  • 393.47 Brake actuators / linings / componentsVehicle Maintenance7 · 0 OOS
  • 393.55 Antilock brake system (ABS)Vehicle Maintenance7 · 0 OOS
  • 393.53 Automatic brake adjusters / indicatorsVehicle Maintenance6 · 0 OOS
  • 395.8 Record of duty status (log / ELD) not current or missingHOS Compliance6 · 2 OOS
  • 393.95 Emergency equipment (extinguisher, triangles)Vehicle Maintenance5 · 0 OOS

ELD & hours-of-service

13 hours-of-service / ELD violations on record · most recent Apr 2, 2026. FMCSA does not publish the ELD device brand; these are the carrier's logging-compliance signals.

7ELD device issues
3No log / no ELD
1False logs
0Drove over hours

Trending worse — 86% of ELD violations are in the last 24 months. Falsified-log violations are a serious integrity flag.

Crash history· 13 total · 8 in 24 mo

13
Total crashes
8
In last 24 mo
1
Fatal
2
Injury
YearCrashesFatalInjuryTow
20264004
20252022
20243003
20232102
20222002
DateStateFatalitiesInjuriesTow-away
May 21, 2026OH00Yes
May 10, 2026OH00Yes
May 9, 2026MO00Yes
Apr 21, 2026IA00Yes
Nov 25, 2025CA01Yes
Aug 14, 2025CA01Yes
Dec 15, 2024MO00Yes
Oct 10, 2024IN00Yes
Feb 29, 2024GA00Yes
Oct 16, 2023FL00Yes
Jan 28, 2023WY10Yes
Sep 27, 2022IL00Yes
May 3, 2022IN00Yes