Shamrock Trucking Llc is an active interstate carrier based in Warminster, PA.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 18 | 0 | 0 |
| Tractors | 3 | 15 | 0 |
| Trailers | 73 | 0 | 0 |
| Total Power Units | 18 | ||
Distinct vehicles · 24 mo
vs 18 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 | 88% | 92% | Worse than most peers |
| HOS Compliance | 97% | 97% | Worse than most peers |
| Driver Fitness | 0% | 0% | Better than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 91% | 94% | 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 | 2 | — | 6.67% |
| Vehicle | 0 | 2 | — | 22.26% |
| Hazmat | 0 | 0 | — |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| Jan 1, 2026 | 0 | 1 | 1 | 1 |
| Oct 1, 2025 | 0 | 1 | 2 | 2 |
| Apr 1, 2025 | 0 | 0 | 1 | 1 |
| Jan 1, 2025 | 0 | 0 | 1 | 1 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 28 | 11 | 3 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Mar 13, 2026 | PA | TRUCK TRACTOR | 0 | 0 |
| Feb 25, 2026 | DE | TRUCK TRACTOR | 0 | 0 |
| Feb 3, 2026 | MD | TRUCK TRACTOR | 0 | 0 |
| Jan 29, 2026 | NJ | TRUCK TRACTOR | 0 | 0 |
| Oct 27, 2025 | MD |
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 7 | 2.50 | — |
| HOS Compliance | 7 | 1.28 | — |
| Vehicle Maintenance | 10 | 9.52 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 7 states. Top state PA accounts for 33% of activity. Activity outside home state (PA): 67%.
+2 other states with fewer inspections
| Hours-of-Service Compliance |
| 11 |
| 4 |
| 2 |
| Unsafe Driving | 7 | 3 | 0 |
| TRUCK TRACTOR |
| 5 |
| 0 |
| Oct 5, 2025 | CT | TRUCK TRACTOR | 1 | 0 |
| Sep 29, 2025 | PA | TRUCK TRACTOR | 2 | 0 |
| Sep 24, 2025 | DE | TRUCK TRACTOR | 1 | 0 |
| Jul 21, 2025 | CT | TRUCK TRACTOR | 3 | 0 |
| Jul 10, 2025 | DE | TRUCK TRACTOR | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Oct 27, 2025 | 39345B2BAIR | Air Brake - Hose/tubing damaged or not secured | Vehicle Maintenance | — |
| Oct 27, 2025 | 39355D2B | Air Brake - ABS malfunction lamp defective on truck-tractor manufactured on or after March 1 2001 for towed vehicle. | Vehicle Maintenance | — |
| Oct 27, 2025 | 39355EB | Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1 1998 | Vehicle Maintenance | — |
| Oct 27, 2025 | 3939ALCL | Lighting - Clearance lamp(s) inoperative | Vehicle Maintenance | — |
| Oct 27, 2025 | 3939ALIL | Lighting - Identification lamp(s) inoperative | Vehicle Maintenance | — |
| Oct 5, 2025 | 3922SLLS4 | State/Local Laws - Speeding 15 or more miles per hour over the speed limit | Unsafe Driving | — |
| Sep 29, 2025 | 39355EB | Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1 1998 | Vehicle Maintenance | — |
| Sep 29, 2025 | 3939ALLPL | Lighting - License plate lamp inoperative | Vehicle Maintenance | — |
| Sep 24, 2025 | 3939ALHLI | Lighting - Headlamp(s) - Any inoperative | Vehicle Maintenance | — |
| Jul 21, 2025 | 39355EB | Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1 1998 | Vehicle Maintenance | — |