Pioneer Materials West Slope
Legal name: Pioneer Materials West INC
Pioneer Materials West Slope's DOT number is USDOT 360663.
Needs attention
1 item to check
Based in
Centennial, CO
Power units
48
Drivers
60
Operation
Interstate
Watch Pioneer Materials West Slope for free
Get an email when this carrier's operating status, authority, safety rating or roadside inspections change. Owners also get a reminder before the MCS-150 is due.
Compliance check
From the FMCSA census and inspection files, checked Oct 16, 2026.
USDOT number status
OKActive in the FMCSA census.
MCS-150 biennial update
OKNext due Mar 31, 2028. Last filed Mar 9, 2026.
Safety rating
Action neededUnsatisfactory since Mar 28, 1990.
Out-of-service rate (24 months)
OKVehicle 11.8% vs 22.26% national, driver 0% vs 6.67% national, across 29 inspections.
UCR registration 2027
InfoInterstate carriers must register with UCR every year. 2027 registration is open now. Estimated fee for 48 power units: $1,163 (bracket 4).
Roadside inspections, last 24 months
| Type | Inspections | Out of service | OOS rate | National avg |
|---|---|---|---|---|
| Vehicle | 17 | 2 | 11.8% | 22.26% |
| Driver | 29 | 0 | 0% | 6.67% |
29 inspections and 20 violations since Oct 16, 2024. Last inspection Aug 24, 2026. National averages are FMCSA-published approximations.
Registration details
- Legal name
- Pioneer Materials West INC
- DBA
- Pioneer Materials West Slope
- Classification
- private property
- CDL drivers
- 38
- MCS-150 last filed
- Mar 9, 2026
- Reported mileage
- 810,000 (2025)
- Added to FMCSA
- Jul 20, 1989
- Safety rating
- Unsatisfactory
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.