Carrier profile · USDOT 450297 · Updated Jun 13, 2026

Roadbuilders Machinery and Supply Co Inc

39 power unitsavg 6.2 yrRegional · 5 statesKANSAS CITY, KS100/100
AUTHORITY STATUS UNKNOWN
Verified linksrbmsco.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%nat'l 22.26%
Driver OOS 0.0%24-mo cumulative
030%nat'l 6.67%

Every inspection in the window pooled — 6 vehicle and 17 driver inspections over 24 months.

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

0.0% · latest 6-mo window▼ Falling

Share of vehicle-level roadside inspections in each trailing six-month window that resulted in a vehicle out-of-service order. Trending down 26.1 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

17 inspections in the charted months · busiest month Dec '24 · 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
≈0.2 / unit·yr
thin signalabundant signal
Few roadside inspections for a 39-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
39
Inspections · 24 mo
17
Annualized
≈9 / yr
Coverage
≈0.2 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

Unsafe Driving
0violations
clean · per-BASIC
Hours-of-Service
0violations
clean · per-BASIC
25%
Driver Fitness
Vektor peer est.
Controlled Substances
0violations
clean · per-BASIC
5%
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 Driving3 · 0 OOS
  • 393.60 Windshield / glazingVehicle Maintenance3 · 0 OOS
  • 383.23 Operating without a valid CDLDriver Fitness1 · 1 OOS
  • 393.43 Parts & accessories (vehicle condition)Vehicle Maintenance1 · 1 OOS
  • 393.9 Inoperative required lampsVehicle Maintenance1 · 0 OOS

ELD & hours-of-service

No hours-of-service or ELD violations on record across 26 inspections — a clean logging history.

Crash history· 10 total · 0 in 24 mo

10
Total crashes
0
In last 24 mo
0
Fatal
6
Injury
YearCrashesFatalInjuryTow
20241011
20211011
20182002
20142011
20091011
20061001
20021011
20001011
DateStateFatalitiesInjuriesTow-away
Jan 22, 2024NE01Yes
Jul 29, 2021MO01Yes
Dec 3, 2018KS00Yes
May 23, 2018IA00Yes
Oct 1, 2014OK00Yes
Jul 11, 2014MO01No
Apr 7, 2009MO01Yes
May 15, 2006KS00Yes
Sep 25, 2002KS02Yes
Aug 1, 2000MO02Yes