Carrier profile · USDOT 91115 · MC-170209 · Updated Jun 13, 2026

Grellner Sales & Service Inc

36 power unitsavg 9.4 yrLocal · 1 statesROLLA, MO93/100

CARRIER ACTIVEMC-170209 ACTIVE

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 33.3%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 — 3 vehicle and 8 driver inspections over 24 months.

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

33.3% · 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 16.7 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

7 inspections in the charted months · busiest month Sep '24 · 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

≈0.1 / unit·yr

thin signalabundant signal

Few roadside inspections for a 36-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: 36
Inspections · 24 mo: 8
Annualized: ≈4 / yr
Coverage: ≈0.1 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

6.5measure

SMS · 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.

396.3 Inspection / repair / maintenance not performedVehicle Maintenance2 · 0 OOS
393.11 Required lamps/reflectors missingVehicle Maintenance1 · 0 OOS
393.45 Brake tubing / hose defectsVehicle Maintenance1 · 1 OOS
392.16 Failure to use seat beltUnsafe Driving1 · 0 OOS
393.53 Automatic brake adjusters / indicatorsVehicle Maintenance1 · 0 OOS
393.9 Inoperative required lampsVehicle Maintenance1 · 0 OOS
393.47 Brake actuators / linings / componentsVehicle Maintenance1 · 0 OOS

ELD & hours-of-service

No hours-of-service or ELD violations on record across 15 inspections — a clean logging history.

Crash history· 24 total · 0 in 24 mo

Total crashes

In last 24 mo

Fatal

Injury

Year	Crashes	Fatal	Injury	Tow
2023	1	0	1	1
2021	1	0	0	1
2018	2	0	0	2
2008	1	0	0	1
2007	1	0	1	1
2006	1	0	0	1
2005	2	0	1	2
2003	1	1	1	1
2002	1	0	1	1
2001	1	0	0	1
2000	3	0	2	3
1999	1	0	0	1
1997	2	0	0	2
1996	1	0	0	1
1995	1	0	1	1
1994	2	0	0	2
1992	1	0	0	1
1991	1	0	1	1

Date	State	Fatalities	Injuries	Tow-away
May 8, 2023	MO	0	1	Yes
May 14, 2021	MO	0	0	Yes
Oct 19, 2018	MO	0	0	Yes
Jan 18, 2018	MO	0	0	Yes
Apr 9, 2008	MO	0	0	Yes
Aug 24, 2007	MO	0	1	Yes
Jan 18, 2006	MO	0	0	Yes
Sep 29, 2005	MO	0	0	Yes
Feb 7, 2005	MO	0	1	Yes
Aug 25, 2003	AR	2	2	Yes
Apr 19, 2002	MO	0	1	Yes
Jul 30, 2001	MO	0	0	Yes
Jul 20, 2000	MO	0	2	Yes
Jul 5, 2000	MO	0	0	Yes
Jun 1, 2000	TX	0	2	Yes
Nov 5, 1999	MO	0	0	Yes
Dec 5, 1997	MO	0	0	Yes
Nov 24, 1997	IA	0	0	Yes
May 14, 1996	IN	0	0	Yes
Dec 23, 1995	MO	0	2	Yes
Sep 28, 1994	MO	0	0	Yes
Jul 27, 1994	MO	0	0	Yes
Sep 23, 1992	TX	0	0	Yes
May 24, 1991	IL	0	1	Yes