Tri-state Generation & Transmission Association INC Safety Record
DOT# 180139 · Westminster, CO 80234 · 3032543153
Excellent safety record — scored 10/100 (lower is better). This carrier has one of the best inspection records on file.
Last inspected 03/10/2026
Safety Score Breakdown · 10/100 points
Lower scores are better. How is this calculated?
According to FMCSA records, Tri-state Generation & Transmission Association INC (DOT# 180139) in Westminster, Colorado has 35 inspections on record with 16 violations and a 14.3% vehicle out-of-service rate. Safety grade: A (excellent safety record).
Out-of-Service Rates vs. National Average
An out-of-service (OOS) violation means a vehicle or driver was found unsafe to operate during a roadside inspection and was prohibited from continuing until the issue was corrected.
Violation Categories · 16 total violations
FMCSA groups violations into Behavioral Analysis and Safety Improvement Categories (BASICs). Each violation found during a roadside inspection is classified into a category that reflects the type of safety risk.
Inspection History · 35 records
FMCSA inspections range from Level 1 (full vehicle and driver examination) to Level 6 (enhanced motorcoach inspection). Level 1 is the most thorough; Levels 2 and 3 are walk-around and driver-only checks.
| Date | State | Veh OOS | Drv OOS |
|---|---|---|---|
| 03/10/2026 | CO | 0 | 0 |
| 11/12/2025 | NE | 0 | 0 |
| 09/11/2025 | CO | 0 | 0 |
| 08/28/2025 | NM | 0 | 0 |
| 08/07/2025 | CO | 0 | 0 |
| 07/30/2025 | CO | 0 | 0 |
| 06/24/2025 | NE | 0 | 0 |
| 02/24/2025 | CO | 0 | 0 |
| 02/21/2025 | NM | 0 | 0 |
| 10/31/2024 | CO | 0 | 0 |
Fleet Profile
Power units include trucks, tractors, and other commercial motor vehicles registered to the carrier. Driver count reflects the total number of drivers reported on the carrier's MCS-150 filing.