Diamond Truckline Inc is an active interstate carrier based in Seabeck, WA.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 5 | 0 | 0 |
| Tractors | 5 | 0 | 0 |
| Trailers | 5 | 0 | 0 |
| Total Power Units | 5 | ||
Distinct vehicles · 24 mo
vs 5 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 91% | 94% | Worse than most peers |
| HOS Compliance | 90% | 94% | Worse than most peers |
| Driver Fitness | 0% | 0% | Better than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 73% | 83% | Around peer average |
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 | 0 | — | 6.67% |
| Vehicle | 0 | 5 | — | 22.26% |
| Hazmat | 0 | 0 | — |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| No crashes recorded | 0 | 0 | 0 | 0 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 17 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Mar 13, 2026 | CA | TRUCK TRACTOR | 0 | 0 |
| Mar 12, 2026 | WA | TRUCK TRACTOR | 2 | 0 |
| Feb 19, 2026 | WA | TRUCK TRACTOR | 1 | 0 |
| Jan 21, 2026 | CA | STRAIGHT TRUCK | 0 | 0 |
| Jan 8, 2026 |
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 3 | 3.58 | — |
| HOS Compliance | 1 | 0.03 | — |
| Vehicle Maintenance | 11 | 3.45 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 2 states. Top state CA accounts for 87% of activity. Activity outside home state (WA): 87%.
| 6 |
| 7 |
| Unsafe Driving | 3 | 0 | 0 |
| Hours-of-Service Compliance | 1 | 0 | 0 |
| CA |
| STRAIGHT TRUCK |
| 0 |
| 0 |
| Jan 6, 2026 | CA | TRUCK TRACTOR | 2 | 0 |
| Dec 15, 2025 | CA | STRAIGHT TRUCK | 0 | 0 |
| Nov 14, 2025 | WA | TRUCK TRACTOR | 0 | 0 |
| Aug 29, 2025 | CA | STRAIGHT TRUCK | 0 | 0 |
| Aug 28, 2025 | CA | TRUCK TRACTOR | 2 | 2 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Mar 12, 2026 | 39345DB | Air Brake - Audible air leak at a proper connection | Vehicle Maintenance | — |
| Mar 12, 2026 | 39355EB | Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1 1998 | Vehicle Maintenance | — |
| Feb 19, 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 | — |
| Jan 6, 2026 | 39324DL | Lighting - Headlamp(s) improperly aimed | Vehicle Maintenance | — |
| Jan 6, 2026 | 39347D2BLTBD | Drum Brake - Inadequate lining/pad thickness | Vehicle Maintenance | — |
| Aug 28, 2025 | 393207ASTBW | Suspension - Suspension connecting rod or tracking component assembly missing the rubber bushing or the rubber bushing is worn to the extent that the component ca | Vehicle Maintenance | Yes |
| Aug 28, 2025 | 39345B2BHTD | Air Brake - Hose/tubing damage into the outer reinforcement ply. | Vehicle Maintenance | Yes |
| Aug 23, 2025 | 39375A3TAOL | Tires - All others leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS | Vehicle Maintenance | Yes |
| Jul 31, 2025 | 3965BHWSL | Hubs - Wheel seal leaking | Vehicle Maintenance | — |
| Jul 23, 2025 | 39522H4ELDBRODS | HOS (ELD) - In-Vehicle Information - Failing to have a supply of blank driver's records of duty status graph-grids sufficient to record the driver's duty status a | Hours-of-Service Compliance | — |