Carrier profile · USDOT 41370 · Updated Jul 18, 2026

Southwest Gas Corporation

537 power unitsLocal · 2 statesLAS VEGAS, NV50/100
AUTHORITY STATUS UNKNOWNRATED SATISFACTORYHAZMAT
Verified linksswgas.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 0.0%24-mo cumulative
050%
Driver OOS 0.0%24-mo cumulative
030%nat'l 6.67%

Every inspection in the window pooled — 1 vehicle and 3 driver inspections over 24 months.

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

33.3% · latest 6-mo window

Share of vehicle-level roadside inspections in each trailing six-month window that resulted in a vehicle out-of-service order. More resolved windows are needed to establish a trend. 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

3 inspections in the charted months · busiest month Jan '25 · 2

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.

Thin coverage
Under-inspected
Expected
Well-monitored
Heavily inspected
≈0.0 / unit·yr
thin signalabundant signal
Few roadside inspections for a 537-unit fleet — the out-of-service and violation signals above rest on a small sample, so weight them cautiously. Thin coverage on a young authority is itself a flag.
Registered power units
537
Inspections · 24 mo
3
Annualized
≈2 / yr
Coverage
≈0.0 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

Unsafe Driving
0violations
clean · per-BASIC
Hours-of-Service
0violations
clean · per-BASIC
Driver Fitness
0violations
clean · per-BASIC
Controlled Substances
0violations
clean · per-BASIC
Vehicle Maintenance
0violations
clean · per-BASIC

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.

  • 390.21 USDOT number marking on vehicleUnsafe Driving2 · 0 OOS
  • 393.43 Parts & accessories (vehicle condition)Vehicle Maintenance2 · 2 OOS
  • 392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving1 · 0 OOS

ELD & hours-of-service

No hours-of-service or ELD violations on record across 5 inspections — a clean logging history.

Crash history· 20 total · 3 in 24 mo

20
Total crashes
3
In last 24 mo
1
Fatal
8
Injury
YearCrashesFatalInjuryTow
20251010
20244014
20233012
20221001
20201001
20181011
20171111
20152002
20071001
20061011
20032012
20022012
DateStateFatalitiesInjuriesTow-away
Nov 6, 2025AZ01No
Dec 13, 2024CA02Yes
Oct 4, 2024AZ00Yes
Aug 15, 2024AZ00Yes
Apr 26, 2024NV00Yes
Dec 15, 2023AZ00Yes
Dec 6, 2023AZ00Yes
Mar 16, 2023NV01No
Apr 12, 2022AZ00Yes
Dec 21, 2020AZ00Yes
Oct 11, 2018AZ01Yes
Mar 5, 2017NV11Yes
Sep 22, 2015AZ00Yes
Feb 24, 2015AZ00Yes
Aug 7, 2007NV00Yes
Aug 7, 2006AZ01Yes
Jul 3, 2003AZ01Yes
Mar 19, 2003AZ00Yes
Oct 8, 2002AZ00Yes
Apr 13, 2002AZ03Yes