Diamond Six S Trucking Llc is an active interstate carrier based in Casper, WY.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 2 | 0 | 0 |
| Tractors | 2 | 0 | 0 |
| Trailers | 4 | 0 | 0 |
| Total Power Units | 2 | ||
Distinct vehicles · 24 mo
vs 2 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 98% | 98% | Worse than most peers |
| HOS Compliance | 99% | 98% | Worse than most peers |
| Driver Fitness | 98% | 98% | Worse than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 93% | 92% | Worse than most peers |
Lower percentile = lower SMS measure = stronger safety record. Computed nightly across active carriers in the same state and fleet-size band.
| Type | Inspections | OOS | OOS % | Nat'l Avg |
|---|---|---|---|---|
| Driver | 0 | 2 | — | 6.67% |
| Vehicle | 0 | 0 | — | 22.26% |
| Hazmat | 0 | 0 | — | 4.44% |
Where they run
Inspected in 3 states. Top state WY accounts for 50% of activity.
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| No crashes recorded | 0 | 0 | 0 | 0 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 10 | 3 | 3 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Sep 23, 2024 | WY | TRUCK TRACTOR | 3 | 2 |
| Aug 1, 2024 | SD | TRUCK TRACTOR | 3 | 1 |
| May 10, 2024 | WY | STRAIGHT TRUCK | 5 | 2 |
| Apr 8, 2024 | ND | TRUCK TRACTOR |
Carriers that share an officer, phone, or email with this DOT.
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 1 | 3.50 | — |
| HOS Compliance | 1 | 3.50 | — |
| Vehicle Maintenance | 2 | 8.00 | — |
| Driver Fitness | 1 | 5.00 | — |
| Controlled Substances | 0 | 0.00 | — |
| Hours-of-Service Compliance |
| 2 |
| 0 |
| 2 |
| Driver Fitness | 1 | 1 | 1 |
| Unsafe Driving | 1 | 1 | 0 |
| 1 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Sep 23, 2024 | 38323A2 | Operating a CMV without a CDL | Driver Fitness | Yes |
| Sep 23, 2024 | 39360D | Windshield / Windows - Tinting permits less than 70% of light transmittance | Vehicle Maintenance | — |
| Sep 23, 2024 | 3958K2 | Driver failing to retain previous 7 days records of duty status | Hours-of-Service Compliance | Yes |
| Aug 1, 2024 | 3922SLLS3 | State/Local Laws - Speeding 11-14 miles per hour over the speed limit | Unsafe Driving | — |
| Aug 1, 2024 | 393100BC | Cargo - Cargo not secured to prevent leaking/spilling/blowing/falling from CMV | Vehicle Maintenance | Yes |
| Aug 1, 2024 | 3939ALSLI | Lighting - Stop lamps - Any inoperative. | Vehicle Maintenance | — |
| May 10, 2024 | 393130C | Improper restraint/securement of item | Vehicle Maintenance | Yes |
| May 10, 2024 | 39343 | No/improper breakaway or emergency braking | Vehicle Maintenance | Yes |
| May 10, 2024 | 39395A | No/discharged/unsecured fire extinguisher | Vehicle Maintenance | — |
| May 10, 2024 | 39395F | Emergency Equipment - Stopped vehicle warning devices missing or improper | Vehicle Maintenance | — |