Carrier profile · USDOT 513539 · Updated Jun 13, 2026

WM MUELLER & SONS INC

81 power unitsLocal · 1 statesHAMBURG, MN73/100

AUTHORITY STATUS UNKNOWNRATED SATISFACTORYHAZMAT

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 4 driver inspections over 24 months.

Roadside inspection history· 24 charted calendar months · vehicle / driver level · any-OOS overlay

4 inspections in the charted months · busiest month Apr '25 · 1

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 81-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: 81
Inspections · 24 mo: 4
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.

392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving18 · 0 OOS
390.21 USDOT number marking on vehicleUnsafe Driving2 · 0 OOS
393.104 Cargo securement — tiedownsVehicle Maintenance1 · 0 OOS
396.5 Oil and/or grease leakVehicle Maintenance1 · 0 OOS

ELD & hours-of-service

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

Crash history· 13 total · 2 in 24 mo

Total crashes

In last 24 mo

Fatal

Injury

Year	Crashes	Fatal	Injury	Tow
2025	1	1	0	0
2024	1	0	0	1
2020	1	0	0	1
2018	1	0	1	0
2015	2	1	1	2
2013	2	0	1	2
2008	1	0	0	1
2007	1	0	1	1
2005	1	0	1	1
2003	2	0	1	2

Date	State	Fatalities	Injuries	Tow-away
Jul 30, 2025	MN	1	0	No
Oct 29, 2024	MN	0	0	Yes
Jul 27, 2020	MN	0	0	Yes
Apr 5, 2018	MN	0	1	No
Jul 10, 2015	MN	1	0	Yes
Jun 12, 2015	MN	0	1	Yes
Nov 18, 2013	MN	0	0	Yes
Mar 13, 2013	MN	0	1	Yes
Mar 21, 2008	MN	0	0	Yes
Sep 10, 2007	MN	0	1	Yes
Nov 15, 2005	MN	0	1	Yes
Jul 3, 2003	MN	0	0	Yes
Mar 27, 2003	MN	0	1	Yes