Carrier profile · USDOT 1427730 · MC-541389 · Updated Jun 13, 2026

Double Diamond Transport Inc

68 power unitsavg 8.4 yrLocal · 1 statesSAN ANTONIO, TX88/100
CARRIER ACTIVEMC-541389 ACTIVE
Verified linksdd-transport.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 13.3%24-mo cumulative
050%nat'l 22.26%
Driver OOS 0.5%24-mo cumulative
030%nat'l 6.67%

Every inspection in the window pooled — 173 vehicle and 185 driver inspections over 24 months.

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

16.7% · 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 6.1 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

173 inspections in the charted months · busiest month May '25 · 15

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
≈1.4 / unit·yr
thin signalabundant signal
Within the expected band for a 68-unit fleet — FMCSA has inspected this carrier often enough that the out-of-service and violation signals above are statistically trustworthy.
Registered power units
68
Inspections · 24 mo
185
Annualized
≈93 / yr
Coverage
≈1.4 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

13%
Unsafe Driving
Vektor peer est.
41%
Hours-of-Service
Vektor peer est.
21%
Driver Fitness
Vektor peer est.
Controlled Substances
0violations
clean · per-BASIC
76%
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.

  • 393.45 Brake tubing / hose defectsVehicle Maintenance53 · 9 OOS
  • 393.9 Inoperative required lampsVehicle Maintenance44 · 4 OOS
  • 392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving40 · 0 OOS
  • 393.75 Tires (defective / underinflated / worn)Vehicle Maintenance35 · 17 OOS
  • 396.3 Inspection / repair / maintenance not performedVehicle Maintenance28 · 3 OOS
  • 396.5 Oil and/or grease leakVehicle Maintenance24 · 2 OOS
  • 393.55 Antilock brake system (ABS)Vehicle Maintenance20 · 0 OOS
  • 393.11 Required lamps/reflectors missingVehicle Maintenance18 · 0 OOS
  • 396.17 Periodic (annual) inspectionVehicle Maintenance15 · 0 OOS
  • 393.78 Windshield wipersVehicle Maintenance13 · 0 OOS

ELD & hours-of-service

33 hours-of-service / ELD violations on record · most recent May 12, 2026. FMCSA does not publish the ELD device brand; these are the carrier's logging-compliance signals.

24ELD device issues
1No log / no ELD
0False logs
7Drove over hours

Trending worse — 75% of ELD violations are in the last 24 months.

Crash history· 30 total · 3 in 24 mo

30
Total crashes
3
In last 24 mo
1
Fatal
10
Injury
YearCrashesFatalInjuryTow
20252002
20241001
20238067
20221001
20214024
20201001
20193103
20183013
20131001
20121001
20082002
20072002
20061011
DateStateFatalitiesInjuriesTow-away
Apr 2, 2025TX00Yes
Feb 26, 2025TX00Yes
Oct 7, 2024TX00Yes
Nov 29, 2023TX00Yes
Oct 19, 2023TX01No
Sep 14, 2023TX01Yes
Aug 30, 2023TX01Yes
Jun 14, 2023TX01Yes
Jun 6, 2023TX01Yes
Apr 26, 2023TX00Yes
Mar 4, 2023TX01Yes
May 25, 2022TX00Yes
Nov 12, 2021TX00Yes
May 9, 2021WV01Yes
Apr 6, 2021TX01Yes
Mar 16, 2021TX00Yes
Sep 1, 2020TX00Yes
May 14, 2019TX00Yes
Feb 15, 2019LA00Yes
Feb 1, 2019TX10Yes
Nov 13, 2018TX01Yes
Oct 16, 2018TX00Yes
Mar 25, 2018AR00Yes
Feb 26, 2013TX00Yes
Aug 24, 2012TX00Yes