Carrier profile · USDOT 637791 · MC-384420 · Updated Jun 13, 2026

Rex Lee Siemer Trucking LLC

17 power unitsavg 19.2 yrRegional · 5 statesMERCER, MO54/100

CARRIER ACTIVEMC-384420 ACTIVERATED SATISFACTORY

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 25.0%24-mo cumulative

050%nat'l 22.26%

Driver OOS 15.4%24-mo cumulative

030%nat'l 6.67%

Every inspection in the window pooled — 4 vehicle and 13 driver inspections over 24 months.

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

25.0% · 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

13 inspections in the charted months · busiest month Nov '25 · 3

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

≈0.4 / unit·yr

thin signalabundant signal

Roadside-inspection volume is about what you'd expect for a 17-unit fleet — enough signal to read the safety record, though not a heavy sample.

Registered power units: 17
Inspections · 24 mo: 13
Annualized: ≈7 / yr
Coverage: ≈0.4 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

47%

Unsafe Driving

Vektor peer est.

45%

Hours-of-Service

Vektor peer est.

84%

Driver Fitness

Vektor peer est.

Controlled Substances

0violations

clean · per-BASIC

70%

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 Driving15 · 0 OOS
393.9 Inoperative required lampsVehicle Maintenance5 · 1 OOS
393.45 Brake tubing / hose defectsVehicle Maintenance2 · 1 OOS
395.8 Record of duty status (log / ELD) not current or missingHOS Compliance2 · 1 OOS
393.11 Required lamps/reflectors missingVehicle Maintenance2 · 0 OOS
393.55 Antilock brake system (ABS)Vehicle Maintenance2 · 0 OOS
383.23 Operating without a valid CDLDriver Fitness2 · 2 OOS
393.60 Windshield / glazingVehicle Maintenance1 · 0 OOS
393.75 Tires (defective / underinflated / worn)Vehicle Maintenance1 · 1 OOS
393.78 Windshield wipersVehicle Maintenance1 · 0 OOS

ELD & hours-of-service

2 hours-of-service / ELD violations on record · most recent Mar 6, 2026. FMCSA does not publish the ELD device brand; these are the carrier's logging-compliance signals.

0ELD device issues

1No log / no ELD

0False logs

0Drove over hours

Crash history· 19 total · 2 in 24 mo

Total crashes

In last 24 mo

Fatal

Injury

Year	Crashes	Fatal	Injury	Tow
2026	2	0	1	2
2022	4	0	1	4
2018	1	0	0	1
2017	1	0	0	1
2016	1	0	0	1
2013	3	0	0	3
2010	1	0	0	1
2007	2	1	0	2
2004	1	0	1	1
2003	1	0	1	1
2002	1	0	0	1
1999	1	0	1	1

Date	State	Fatalities	Injuries	Tow-away
Apr 11, 2026	MO	0	3	Yes
Mar 2, 2026	MO	0	0	Yes
Aug 29, 2022	MO	0	2	Yes
May 19, 2022	MO	0	0	Yes
Mar 28, 2022	MO	0	0	Yes
Mar 10, 2022	MO	0	0	Yes
Oct 9, 2018	MO	0	0	Yes
Mar 30, 2017	MO	0	0	Yes
Jan 22, 2016	MO	0	0	Yes
Jul 24, 2013	KS	0	0	Yes
Jan 8, 2013	MO	0	0	Yes
Jan 5, 2013	NM	0	0	Yes
Jan 13, 2010	MO	0	0	Yes
Aug 16, 2007	MO	1	0	Yes
Jan 3, 2007	MO	0	0	Yes
Apr 17, 2004	MO	0	2	Yes
Dec 1, 2003	MO	0	1	Yes
Oct 7, 2002	MO	0	0	Yes
Jun 2, 1999	MO	0	1	Yes