Carrier profile · USDOT 968869 · MC-562112 · Updated Jun 13, 2026

NH Environmental Group Inc

DBA A & C TIERRA ENVIRONMENTAL

21 power unitsavg 12.1 yrLocal · 2 statesEAST CHICAGO, IN80/100
CARRIER ACTIVEMC-562112 ACTIVERATED SATISFACTORY
Verified linkstierra-environmental.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 66.7%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 9 driver inspections over 24 months.

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

66.7% · 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 30.0 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

8 inspections in the charted months · busiest month Oct '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 21-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
21
Inspections · 24 mo
9
Annualized
≈5 / yr
Coverage
≈0.2 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

9%
Unsafe Driving
Vektor peer est.
Hours-of-Service
0violations
clean · per-BASIC
Driver Fitness
0violations
clean · per-BASIC
Controlled Substances
0violations
clean · per-BASIC
Vehicle Maintenance
10.66measure
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.

  • 392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving11 · 0 OOS
  • 396.17 Periodic (annual) inspectionVehicle Maintenance6 · 0 OOS
  • 393.75 Tires (defective / underinflated / worn)Vehicle Maintenance4 · 3 OOS
  • 393.9 Inoperative required lampsVehicle Maintenance4 · 0 OOS
  • 393.45 Brake tubing / hose defectsVehicle Maintenance1 · 0 OOS
  • 392.8 Driving of commercial motor vehiclesUnsafe Driving1 · 0 OOS
  • 387.303 Other violationOther1 · 0 OOS

ELD & hours-of-service

No hours-of-service or ELD violations on record across 14 inspections — a clean logging history.

Crash history· 20 total · 4 in 24 mo

20
Total crashes
4
In last 24 mo
0
Fatal
9
Injury
YearCrashesFatalInjuryTow
20253013
20241010
20221010
20211001
20191001
20171001
20152002
20132021
20111011
20091001
20082012
20061001
20051011
20042012
DateStateFatalitiesInjuriesTow-away
Sep 18, 2025IL00Yes
Aug 29, 2025IL01Yes
Feb 10, 2025IN00Yes
Nov 19, 2024IL01No
Feb 4, 2022IL01No
Feb 8, 2021IN00Yes
Mar 12, 2019IL00Yes
Oct 12, 2017IL00Yes
Nov 21, 2015IN00Yes
Sep 15, 2015IN00Yes
Dec 17, 2013IL01Yes
Dec 3, 2013IL01No
Nov 22, 2011IN03Yes
Jun 17, 2009IN00Yes
Jun 26, 2008IN01Yes
Mar 25, 2008IN00Yes
Mar 4, 2006IL00Yes
Nov 15, 2005LA02Yes
Sep 25, 2004IL00Yes
Jul 2, 2004IL01Yes