Carrier profile · USDOT 3212328 · MC-1003417 · Updated Jun 13, 2026

FRONTIER SUPPORT CARRIER LLC

60 power unitsavg 9.3 yrMulti-region · 9 statesHILLSBORO, TX80/100
CARRIER ACTIVEMC-1003417 ACTIVE
Verified linksfrontiersl.comFMCSA 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 38.5%24-mo cumulative
050%nat'l 22.26%
Driver OOS 2.0%24-mo cumulative
030%nat'l 6.67%

Every inspection in the window pooled — 91 vehicle and 98 driver inspections over 24 months.

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

54.5% · 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 20.8 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

93 inspections in the charted months · busiest month Jan '25 · 8

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.

Well-monitored
Under-inspected
Expected
Well-monitored
Heavily inspected
≈0.8 / unit·yr
thin signalabundant signal
Within the expected band for a 60-unit fleet — FMCSA has inspected this carrier often enough that the out-of-service and violation signals above are statistically trustworthy.
Registered power units
60
Inspections · 24 mo
98
Annualized
≈49 / yr
Coverage
≈0.8 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

7%
Unsafe Driving
Vektor peer est.
91%
Hours-of-Service
Vektor peer est.
36%
Driver Fitness
Vektor peer est.
Controlled Substances
0violations
clean · per-BASIC
78%
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.

  • 393.9 Inoperative required lampsVehicle Maintenance49 · 8 OOS
  • 392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving37 · 0 OOS
  • 393.75 Tires (defective / underinflated / worn)Vehicle Maintenance19 · 13 OOS
  • 393.45 Brake tubing / hose defectsVehicle Maintenance19 · 4 OOS
  • 393.11 Required lamps/reflectors missingVehicle Maintenance15 · 0 OOS
  • 396.17 Periodic (annual) inspectionVehicle Maintenance14 · 0 OOS
  • 393.104 Cargo securement — tiedownsVehicle Maintenance14 · 1 OOS
  • 393.55 Antilock brake system (ABS)Vehicle Maintenance13 · 0 OOS
  • 393.110 Cargo securement — number of tiedownsVehicle Maintenance13 · 13 OOS
  • 393.60 Windshield / glazingVehicle Maintenance12 · 0 OOS

ELD & hours-of-service

38 hours-of-service / ELD violations on record · most recent Apr 3, 2026. FMCSA does not publish the ELD device brand; these are the carrier's logging-compliance signals.

19ELD device issues
0No log / no ELD
7False logs
9Drove over hours

5 ELD violations in the last 24 months. Falsified-log violations are a serious integrity flag.

Crash history· 11 total · 2 in 24 mo

11
Total crashes
2
In last 24 mo
0
Fatal
6
Injury
YearCrashesFatalInjuryTow
20261001
20251011
20243003
20231001
20222021
20211011
20202021
DateStateFatalitiesInjuriesTow-away
Mar 14, 2026MT00Yes
Nov 10, 2025TX01Yes
Jun 17, 2024TX00Yes
Mar 29, 2024TX00Yes
Mar 15, 2024TX00Yes
Mar 23, 2023TX00Yes
Oct 13, 2022TX01Yes
Aug 23, 2022TX01No
May 12, 2021TX01Yes
Dec 9, 2020TX01No
Aug 20, 2020TX01Yes