DBA: Guardian Barrier Services
Guardian Barrier Services Llc is an active interstate carrier based in Mount Joy, PA.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 23 | 0 | 0 |
| Tractors | 23 | 0 | 0 |
| Trailers | 50 | 0 | 0 |
| Total Power Units | 23 | ||
Distinct vehicles · 24 mo
vs 23 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 69% | 89% | Around peer average |
| HOS Compliance | 94% | 97% | Worse than most peers |
| Driver Fitness | 73% | 91% | Around peer average |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 74% | 89% | 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 | 3 | — | 6.67% |
| Vehicle | 0 | 5 | — | 22.26% |
| Hazmat | 0 | 0 | — |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| Jul 1, 2025 | 0 | 0 | 1 | 1 |
| Apr 1, 2025 | 0 | 1 | 1 | 1 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 6 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Feb 4, 2026 | NM | TRUCK TRACTOR | 1 | 0 |
| Feb 4, 2026 | CA | STRAIGHT TRUCK | 0 | 0 |
| Jan 31, 2026 | NM | TRUCK TRACTOR | 0 | 0 |
| Jan 28, 2026 | LA | TRUCK TRACTOR | 1 | 1 |
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 2 | 0.92 | — |
| HOS Compliance | 2 | 1.24 | — |
| Vehicle Maintenance | 5 | 5.38 | — |
| Driver Fitness | 1 | 0.21 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 13 states. Top state NM accounts for 17% of activity. Activity outside home state (PA): 89%.
+8 other states with fewer inspections
| 2 |
| 3 |
| Hours-of-Service Compliance | 3 | 1 | 2 |
| Unsafe Driving | 2 | 0 | 0 |
| Driver Fitness | 1 | 0 | 1 |
| Jan 21, 2026 |
| NM |
| TRUCK TRACTOR |
| 1 |
| 1 |
| Dec 3, 2025 | AR | TRUCK TRACTOR | 2 | 2 |
| Nov 22, 2025 | FL | TRUCK TRACTOR | 2 | 3 |
| Nov 17, 2025 | OK | TRUCK TRACTOR | 0 | 0 |
| Sep 27, 2025 | OH | TRUCK TRACTOR | 3 | 1 |
| Sep 18, 2025 | MD | TRUCK TRACTOR | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Feb 4, 2026 | 3922SLLS2 | State/Local Laws - Speeding 6-10 miles per hour over the speed limit | Unsafe Driving | — |
| Jan 28, 2026 | 39141APC | Medical (Certificate) - Operating a property-carrying vehicle without a valid medical certificate in possession or on file with the state drivers licensing agency | Driver Fitness | Yes |
| Jan 21, 2026 | 39375A3 | Tire-flat and/or audible air leak | Vehicle Maintenance | Yes |
| Dec 3, 2025 | 3958A1HOSP | HOS (Property) - Failing to have a record of duty status using the method prescribed | Hours-of-Service Compliance | Yes |
| Dec 3, 2025 | 3963A1F | Fuel - Dripping leak. | Vehicle Maintenance | Yes |
| Nov 22, 2025 | 39355EB | Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1 1998 | Vehicle Maintenance | — |
| Nov 22, 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 |
| Sep 27, 2025 | 3939ALCL | Lighting - Clearance lamp(s) inoperative | Vehicle Maintenance | — |
| Sep 27, 2025 | 39524 | HOS (ELD) - ELD Form and Manner | Hours-of-Service Compliance | — |
| Sep 27, 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 | Yes |