Carrier profile · USDOT 182420 · MC-155675 · Updated Jun 13, 2026

Porter Warner Industries LLC

8 power unitsavg 11.4 yrRegional · 3 statesCHATTANOOGA, TN86/100
CARRIER ACTIVEMC-155675 ACTIVERATED SATISFACTORYHAZMAT
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 42.9%24-mo cumulative
050%nat'l 22.26%
Driver OOS 0.0%24-mo cumulative
030%nat'l 6.67%

Every inspection in the window pooled — 7 vehicle and 12 driver inspections over 24 months.

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

50.0% · 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 17.1 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

12 inspections in the charted months · busiest month Sep '24 · 1

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
≈0.8 / unit·yr
thin signalabundant signal
Roadside-inspection volume is about what you'd expect for a 8-unit fleet — enough signal to read the safety record, though not a heavy sample.
Registered power units
8
Inspections · 24 mo
12
Annualized
≈6 / yr
Coverage
≈0.8 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

8%
Unsafe Driving
Vektor peer est.
Hours-of-Service
0violations
clean · per-BASIC
Driver Fitness
0violations
clean · per-BASIC
Controlled Substances
0violations
clean · per-BASIC
34%
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 Driving4 · 0 OOS
  • 393.47 Brake actuators / linings / componentsVehicle Maintenance2 · 0 OOS
  • 172.516 Other violationOther2 · 1 OOS
  • 393.75 Tires (defective / underinflated / worn)Vehicle Maintenance2 · 2 OOS
  • 396.3 Inspection / repair / maintenance not performedVehicle Maintenance2 · 0 OOS
  • 393.53 Automatic brake adjusters / indicatorsVehicle Maintenance1 · 0 OOS
  • 393.43 Parts & accessories (vehicle condition)Vehicle Maintenance1 · 1 OOS
  • 387.303 Other violationOther1 · 0 OOS
  • 392.82 Using a hand-held mobile phoneUnsafe Driving1 · 0 OOS
  • 172.504 Other violationOther1 · 0 OOS

ELD & hours-of-service

No hours-of-service or ELD violations on record across 16 inspections — a clean logging history.

Crash history· 21 total · 0 in 24 mo

21
Total crashes
0
In last 24 mo
0
Fatal
8
Injury
YearCrashesFatalInjuryTow
20161001
20131001
20092012
20081001
20062012
20052002
20042002
20032022
20021011
19992021
19972012
19951001
19941001
19931001
DateStateFatalitiesInjuriesTow-away
Jan 4, 2016AZ00Yes
Aug 15, 2013GA00Yes
Aug 14, 2009TX01Yes
May 1, 2009TX00Yes
Jul 31, 2008TX00Yes
Oct 25, 2006TX00Yes
Jul 9, 2006NC01Yes
Nov 15, 2005CA00Yes
Jul 28, 2005NC00Yes
Sep 8, 2004CA00Yes
Feb 23, 2004TX00Yes
Jun 5, 2003TX01Yes
Mar 27, 2003SC01Yes
Jul 22, 2002TN02Yes
Apr 13, 1999GA02Yes
Apr 13, 1999GA02No
Sep 12, 1997TX01Yes
Feb 14, 1997AL00Yes
Jan 25, 1995CA00Yes
Jul 18, 1994TX00Yes
Feb 19, 1993AL00Yes