Tri-S Environmental Services INC
Tri-S Environmental Services INC's DOT number is USDOT 811125, MC number MC-361367.
Looks good
No issues found
Based in
Ellington, CT
Power units
16
Drivers
20
Operation
Interstate
Watch Tri-S Environmental Services INC for free
Next MCS-150 due: May 31, 2028
We'll email a reminder before it's due, and the same day this carrier's operating status, authority, safety rating or roadside inspections change.
Compliance check
From the FMCSA census and inspection files, checked Oct 20, 2026.
USDOT number status
OKActive in the FMCSA census.
MCS-150 biennial update
OKNext due May 31, 2028. Last filed Sep 17, 2026.
Operating authority (MC-361367)
OKAuthority shows active.
Safety rating
OKSatisfactory since Mar 31, 2008.
Out-of-service rate (24 months)
OKVehicle 0% vs 22.26% national, driver 0% vs 6.67% national, across 6 inspections.
UCR registration 2027
InfoInterstate carriers must register with UCR every year. 2027 registration is open now. Estimated fee for 16 power units: $333 (bracket 3).
Roadside inspections, last 24 months
| Type | Inspections | Out of service | OOS rate | National avg |
|---|---|---|---|---|
| Vehicle | 6 | 0 | 0% | 22.26% |
| Driver | 6 | 0 | 0% | 6.67% |
6 inspections and 10 violations since Oct 20, 2024. Last inspection Sep 23, 2026. National averages are FMCSA-published approximations.
Registration details
- Legal name
- Tri-S Environmental Services INC
- DBA
- -
- Classification
- authorized for hire
- CDL drivers
- 5
- MCS-150 last filed
- Sep 17, 2026
- Reported mileage
- 91,295 (2025)
- Added to FMCSA
- May 19, 1999
- Safety rating
- Satisfactory
Source: FMCSA Motor Carrier Census and Vehicle Inspection File (data.transportation.gov), public records. Contact details are intentionally not shown. MyDotCheck is an independent service and is not affiliated with, endorsed by, or part of the U.S. Department of Transportation or FMCSA. Data comes from public FMCSA datasets and may lag official records by a day or more. Government filings can be made directly with FMCSA at no charge.