Diamond Trucklines Inc is an active interstate carrier based in Artesia, CA.
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 | 0 | 2 | 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 | Insp w/ Viol |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 92% | 96% | Worse than most peers |
| HOS Compliance | 93% | 97% | Worse than most peers |
| Driver Fitness | 0% | 0% | Better than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 97% | 99% | 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 | 1 | — | 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 | 23 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Jan 6, 2026 | CA | TRUCK TRACTOR | 4 | 2 |
| Oct 7, 2025 | LA | TRUCK TRACTOR | 0 | 0 |
| Aug 15, 2025 | LA | TRUCK TRACTOR | 0 | 0 |
| Jul 10, 2025 | NM | TRUCK TRACTOR | 0 | 0 |
| Jul 4, 2025 |
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 1 | 4.80 | — |
| HOS Compliance | 4 | 2.00 | — |
| Vehicle Maintenance | 5 | 15.23 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 7 states. Top state AR accounts for 25% of activity. Activity outside home state (CA): 83%.
+2 other states with fewer inspections
| 5 |
| Hours-of-Service Compliance | 8 | 3 | 1 |
| Unsafe Driving | 2 | 1 | 0 |
| AR |
| TRUCK TRACTOR |
| 1 |
| 0 |
| Jun 10, 2025 | AZ | TRUCK TRACTOR | 10 | 1 |
| Jun 5, 2025 | AR | TRUCK TRACTOR | 0 | 0 |
| May 19, 2025 | OH | TRUCK TRACTOR | 0 | 0 |
| Apr 23, 2025 | AR | TRUCK TRACTOR | 0 | 0 |
| Apr 21, 2025 | MO | TRUCK TRACTOR | 9 | 2 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Jan 6, 2026 | 39345B2BAIR | Air Brake - Hose/tubing damaged or not secured | Vehicle Maintenance | — |
| Jan 6, 2026 | 39375A3TAOL | Tires - All others leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS | Vehicle Maintenance | Yes |
| Jan 6, 2026 | 39375A3TAOLTIS | Tires - All others leaking in tread area and inflation less than 50% of the maximum inflation pressure on tire equipped with ATIS | Vehicle Maintenance | Yes |
| Jan 6, 2026 | 3939ALSML | Lighting - Side marker lamp(s) inoperative | Vehicle Maintenance | — |
| Jul 4, 2025 | 39524 | HOS (ELD) - ELD Form and Manner | Hours-of-Service Compliance | — |
| Jun 10, 2025 | 39311A1CSLRR | Conspicuity Systems - Truck tractor lower rear retro reflective sheeting missing on vehicle manufactured on or after July 1 1997 | Vehicle Maintenance | — |
| Jun 10, 2025 | 393201AFRCLS | Frame - Cracked/loose/sagging/broken frame or chassis | Vehicle Maintenance | — |
| Jun 10, 2025 | 39347E | Brake Out of Adjustment - Roto Clamp (Short & Long) DD-3 or Bolt | Vehicle Maintenance | — |
| Jun 10, 2025 | 39353BB | Air Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear | Vehicle Maintenance | — |
| Jun 10, 2025 | 39355EB | Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1 1998 | Vehicle Maintenance | — |