M-Rock Trucking Inc is an active interstate carrier based in Antelope, CA.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 3 | 0 | 0 |
| Tractors | 3 | 0 | 0 |
| Trailers | 3 | 0 | 0 |
| Total Power Units | 3 | ||
Distinct vehicles · 24 mo
vs 3 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 93% | 97% | Worse than most peers |
| HOS Compliance | 92% | 96% | Worse than most peers |
| Driver Fitness | 0% | 0% | Better than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 86% | 93% | 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 | 0 | — | 6.67% |
| Vehicle | 0 | 6 | — | 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 | 25 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Mar 16, 2026 | CA | TRUCK TRACTOR | 0 | 0 |
| Mar 12, 2026 | CA | TRUCK TRACTOR | 2 | 0 |
| Feb 5, 2026 | CA | TRUCK TRACTOR | 0 | 0 |
| Dec 26, 2025 | CA | TRUCK TRACTOR | 0 | 0 |
| Nov 18, 2025 |
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 1 | 5.66 | — |
| HOS Compliance | 2 | 1.47 | — |
| Vehicle Maintenance | 11 | 6.54 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 3 states. Top state CA accounts for 74% of activity. Activity outside home state (CA): 26%.
| 7 |
| Hours-of-Service Compliance | 3 | 3 | 0 |
| Unsafe Driving | 1 | 1 | 0 |
| WA |
| TRUCK TRACTOR |
| 7 |
| 0 |
| Nov 11, 2025 | CA | TRUCK TRACTOR | 0 | 0 |
| Oct 3, 2025 | CA | TRUCK TRACTOR | 1 | 1 |
| Sep 22, 2025 | WA | TRUCK TRACTOR | 6 | 1 |
| Sep 12, 2025 | WA | TRUCK TRACTOR | 0 | 0 |
| Jul 15, 2025 | CA | TRUCK TRACTOR | 1 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Mar 12, 2026 | 39347E | Brake Out of Adjustment - Roto Clamp (Short & Long) DD-3 or Bolt | Vehicle Maintenance | — |
| Mar 12, 2026 | 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 | — |
| Nov 18, 2025 | 393207FSLAS | Suspension - Leaking 3 PSI in 5 minutes | Vehicle Maintenance | — |
| Nov 18, 2025 | 393209ESPSLA | Steering - Power steering leaking anywhere. | Vehicle Maintenance | — |
| Nov 18, 2025 | 39345B2BAIR | Air Brake - Hose/tubing damaged or not secured | Vehicle Maintenance | — |
| Nov 18, 2025 | 39355EB | Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1 1998 | Vehicle Maintenance | — |
| Nov 18, 2025 | 3953A2HOSPD | HOS (Property) - Driving beyond the 14 hour after coming on duty following 10 consecutive hours off duty during the current 8 consecutive day period. Date and Tim | Hours-of-Service Compliance | — |
| Nov 18, 2025 | 3958EHOSPDOOS | HOS (Property) - Driver produces a false record of duty status that concealed an HOS limitation violation after the last rest period. Explain: | Hours-of-Service Compliance | — |
| Nov 18, 2025 | 3963A1BALAC | Brake - Audible air leak from a brake chamber | Vehicle Maintenance | — |
| Oct 3, 2025 | 3963A1AASGMD | More than 25% of the slider-guide/hold-down brackets are missing or disengaged. | Vehicle Maintenance | Yes |