Diamond Transportation Inc is an active interstate carrier based in Dallas, TX.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 22 | 0 | 0 |
| Tractors | 10 | 12 | 0 |
| Trailers | 36 | 0 | 0 |
| Total Power Units | 22 | ||
Distinct vehicles · 24 mo
vs 22 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 88% | 95% | Worse than most peers |
| HOS Compliance | 90% | 94% | Worse than most peers |
| Driver Fitness | 82% | 93% | Worse than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 75% | 81% | 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 | 4 | — | 6.67% |
| Vehicle | 0 | 25 | — | 22.26% |
| Hazmat | 0 | 0 | — |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| Jan 1, 2026 | 0 | 0 | 1 | 1 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 72 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Mar 18, 2026 | IN | TRUCK TRACTOR | 1 | 0 |
| Mar 17, 2026 | MO | TRUCK TRACTOR | 4 | 2 |
| Mar 11, 2026 | TX | TRUCK TRACTOR | 0 | 0 |
| Mar 10, 2026 | OK | TRUCK TRACTOR | 0 | 0 |
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 7 | 1.94 | — |
| HOS Compliance | 11 | 1.08 | — |
| Vehicle Maintenance | 25 | 7.18 | — |
| Driver Fitness | 2 | 0.56 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 13 states. Top state TX accounts for 37% of activity. Activity outside home state (TX): 63%.
+8 other states with fewer inspections
| 7 |
| 24 |
| Hours-of-Service Compliance | 18 | 7 | 1 |
| Unsafe Driving | 9 | 3 | 0 |
| Driver Fitness | 3 | 2 | 3 |
| Feb 17, 2026 |
| TN |
| TRUCK TRACTOR |
| 3 |
| 0 |
| Feb 11, 2026 | TX | TRUCK TRACTOR | 4 | 0 |
| Feb 5, 2026 | TN | TRUCK TRACTOR | 1 | 1 |
| Feb 3, 2026 | TX | TRUCK TRACTOR | 3 | 0 |
| Jan 23, 2026 | TN | TRUCK TRACTOR | 5 | 4 |
| Jan 13, 2026 | MD | TRUCK TRACTOR | 4 | 1 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Mar 18, 2026 | 3922SLLTCD | State/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g. safety official signal sign light lane marking other | Unsafe Driving | — |
| Mar 17, 2026 | 39345B2BAIR | Air Brake - Hose/tubing damaged or not secured | Vehicle Maintenance | — |
| Mar 17, 2026 | 39345B2BHTD | Air Brake - Hose/tubing damage into the outer reinforcement ply. | Vehicle Maintenance | Yes |
| Mar 17, 2026 | 39347ABCFSBD | Drum Brake - Contaminated friction surface | Vehicle Maintenance | — |
| Mar 17, 2026 | 3965BHWSL | Hubs - Wheel seal leaking | Vehicle Maintenance | Yes |
| Feb 17, 2026 | 3965BL | Lubrication - Oil or grease leak | Vehicle Maintenance | — |
| Feb 17, 2026 | 3939ALIL | Lighting - Identification lamp(s) inoperative | Vehicle Maintenance | — |
| Feb 17, 2026 | 3958E1PC | HOS - False record of duty status driver improper use of Personal Conveyance - Not OOS | Hours-of-Service Compliance | — |
| Feb 11, 2026 | 3922WC | Wheel (Mud) Flaps missing or defective | Vehicle Maintenance | — |
| Feb 11, 2026 | 39345DLUV | Brake Connections with Leaks Under Vehicle | Vehicle Maintenance | — |