Mountain Mud Service & Supply INC Safety Record
DOT# 1444132 · Gillette, WY 82716 · 3076828688
Average safety record — scored 37/100. This carrier's inspection results are typical for the industry.
Last inspected 02/04/2026
Safety Score Breakdown · 37/100 points
Lower scores are better. How is this calculated?
According to FMCSA records, Mountain Mud Service & Supply INC (DOT# 1444132) in Gillette, Wyoming has 36 inspections on record with 113 violations and a 63.9% vehicle out-of-service rate. Safety grade: C. Active common authority.
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 · 113 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 · 36 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 |
|---|---|---|---|
| 02/04/2026 | ND | 0 | 0 |
| 01/07/2026 | ND | 0 | 0 |
| 10/07/2025 | ND | 2 | 0 |
| 10/01/2025 | SD | 0 | 0 |
| 09/30/2025 | ND | 0 | 0 |
| 07/31/2025 | SD | 0 | 0 |
| 06/28/2025 | ND | 0 | 0 |
| 05/09/2025 | WY | 2 | 0 |
| 04/24/2025 | WY | 0 | 0 |
| 04/23/2025 | ND | 2 | 0 |
Authority & Insurance
FMCSA operating authority permits interstate for-hire transportation. Carriers must maintain minimum insurance coverage levels to keep authority active. BIPD (bodily injury and property damage) insurance is required for all for-hire carriers.
| Type | Insurer | Coverage |
|---|---|---|
| BIPD/Primary | Arch Insurance Company | $1,000 |
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.