Tri-Lines Express Inc is an active interstate carrier based in Diamond Bar, CA.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 20 | 0 | 0 |
| Tractors | 20 | 0 | 0 |
| Trailers | 40 | 0 | 0 |
| Total Power Units | 20 | ||
Distinct vehicles · 24 mo
vs 20 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 95% | 96% | Worse than most peers |
| HOS Compliance | 93% | 96% | Worse than most peers |
| Driver Fitness | 84% | 96% | Worse than most peers |
| Controlled Substances | 97% | 100% | Worse than most peers |
| Vehicle Maintenance | 87% | 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 | 19 | — | 6.67% |
| Vehicle | 0 | 44 | — | 22.26% |
| Hazmat | 0 | 0 | — |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| Apr 1, 2025 | 0 | 0 | 1 | 1 |
| Jul 1, 2024 | 0 | 0 | 1 | 1 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 198 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Mar 18, 2026 | OK | TRUCK TRACTOR | 0 | 0 |
| Mar 14, 2026 | AR | TRUCK TRACTOR | 3 | 0 |
| Mar 8, 2026 | OK | TRUCK TRACTOR | 1 | 0 |
| Mar 7, 2026 | TN | TRUCK TRACTOR | 1 | 1 |
| Category |
|---|
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 12 | 3.97 | — |
| HOS Compliance | 52 | 1.39 | — |
| Vehicle Maintenance | 89 | 5.93 | — |
| Driver Fitness | 7 | 0.22 | — |
| Controlled Substances | 1 | 0.01 | — |
| 4.44% |
Where they run
Inspected in 20 states. Top state CA accounts for 21% of activity. Activity outside home state (CA): 79%.
+15 other states with fewer inspections
| 58 |
| 46 |
| Hours-of-Service Compliance | 83 | 25 | 19 |
| Unsafe Driving | 13 | 7 | 0 |
| Driver Fitness | 7 | 5 | 7 |
| Controlled Substances/​Alcohol | 1 | 0 | 1 |
| Feb 28, 2026 |
| NM |
| TRUCK TRACTOR |
| 1 |
| 0 |
| Feb 28, 2026 | AR | TRUCK TRACTOR | 3 | 0 |
| Feb 25, 2026 | AZ | TRUCK TRACTOR | 5 | 5 |
| Feb 25, 2026 | CA | TRUCK TRACTOR | 2 | 1 |
| Feb 24, 2026 | AL | TRUCK TRACTOR | 0 | 0 |
| Feb 24, 2026 | TN | TRUCK TRACTOR | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Mar 14, 2026 | 39311A1CSURR | Conspicuity Systems - Truck tractor upper rear retro reflective sheeting missing on vehicle manufactured on or after July 1 1997 | Vehicle Maintenance | — |
| Mar 14, 2026 | 3939ALSLI | Lighting - Stop lamps - Any inoperative. | Vehicle Maintenance | — |
| Mar 14, 2026 | 3965BL | Lubrication - Oil or grease leak | Vehicle Maintenance | — |
| Mar 8, 2026 | 3965BL | Lubrication - Oil or grease leak | Vehicle Maintenance | — |
| Mar 7, 2026 | 3939ALTSI | Lighting - Turn signal - Any inoperative on the rearmost vehicle. | Vehicle Maintenance | Yes |
| Feb 28, 2026 | 39311 | No or defective lighting devices or reflective material as required | Vehicle Maintenance | — |
| Feb 28, 2026 | 3939ALIL | Lighting - Identification lamp(s) inoperative | Vehicle Maintenance | — |
| Feb 28, 2026 | 39617CPI | Operating a CMV without documentation of a periodic inspection | Vehicle Maintenance | — |
| Feb 28, 2026 | 3965BL | Lubrication - Oil or grease leak | Vehicle Maintenance | — |
| Feb 25, 2026 | 39524 | HOS (ELD) - ELD Form and Manner | Hours-of-Service Compliance | — |