Carrier profile · USDOT 336944 · Updated Jun 13, 2026

NELSON TREE SERVICE LLC

763 power unitsavg 7.3 yrMulti-region · 15 statesWILLOW GROVE, PA88/100
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 17.2%24-mo cumulative
050%nat'l 22.26%
Driver OOS 1.0%24-mo cumulative
030%nat'l 6.67%

Every inspection in the window pooled — 64 vehicle and 101 driver inspections over 24 months.

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

40.0% · 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 5.2 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

97 inspections in the charted months · busiest month Sep '25 · 10

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 763-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
763
Inspections · 24 mo
101
Annualized
51 / yr
Coverage
0.1 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

6%
Unsafe Driving
Vektor peer est.
Hours-of-Service
0violations
clean · per-BASIC
7%
Driver Fitness
Vektor peer est.
Controlled Substances
0violations
clean · per-BASIC
46%
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.

  • 393.9 Inoperative required lampsVehicle Maintenance39 · 14 OOS
  • 392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving31 · 0 OOS
  • 393.95 Emergency equipment (extinguisher, triangles)Vehicle Maintenance8 · 0 OOS
  • 396.17 Periodic (annual) inspectionVehicle Maintenance8 · 0 OOS
  • 390.21 USDOT number marking on vehicleUnsafe Driving5 · 0 OOS
  • 392.16 Failure to use seat beltUnsafe Driving5 · 0 OOS
  • 393.43 Parts & accessories (vehicle condition)Vehicle Maintenance3 · 3 OOS
  • 393.75 Tires (defective / underinflated / worn)Vehicle Maintenance3 · 2 OOS
  • 396.3 Inspection / repair / maintenance not performedVehicle Maintenance3 · 2 OOS
  • 393.81 HornVehicle Maintenance2 · 0 OOS

ELD & hours-of-service

1 hours-of-service / ELD violation on record · most recent Apr 30, 2024. FMCSA does not publish the ELD device brand; these are the carrier's logging-compliance signals.

0ELD device issues
0No log / no ELD
0False logs
0Drove over hours

Crash history· 167 total · 7 in 24 mo

167
Total crashes
7
In last 24 mo
6
Fatal
84
Injury
YearCrashesFatalInjuryTow
20261010
20254024
20246036
20233023
20223103
20218157
20206134
20198058
20186026
20177047
20165024
20155025
20147017
20134023
2012110211
20116034
20107026
20097066
20088048
20072012
20066136
20058058
20043013
20034022
20029184
20014024
20004013
19993012
19982122
19971010
19963030
19952002
19941010
19932011
19901011
DateStateFatalitiesInjuriesTow-away
Jan 27, 2026TX01No
Dec 18, 2025MI00Yes
Sep 19, 2025MI01Yes
Jul 18, 2025IL00Yes
Apr 25, 2025VA01Yes
Oct 28, 2024MI03Yes
Sep 5, 2024MI00Yes
Jun 15, 2024MI02Yes
May 7, 2024MI00Yes
Apr 5, 2024NJ00Yes
Mar 14, 2024IN02Yes
Nov 8, 2023FL00Yes
Apr 26, 2023IN01Yes
Mar 13, 2023NY01Yes
Aug 5, 2022MO00Yes
Apr 18, 2022NY10Yes
Jan 17, 2022ME00Yes
Dec 3, 2021TX01No
Oct 20, 2021NY01Yes
Sep 17, 2021TX01Yes
Aug 30, 2021FL01Yes
Aug 8, 2021MI00Yes
May 10, 2021PA00Yes
Mar 30, 2021OH10Yes
Mar 8, 2021MA02Yes