Zimmerman Truck Lines Inc is an active interstate carrier based in Mifflintown, PA.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 87 | 0 | 0 |
| Tractors | 87 | 0 | 0 |
| Trailers | 165 | 85 | 0 |
| Total Power Units | 87 | ||
Distinct vehicles · 24 mo
vs 87 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 | 44% | 87% | Around peer average |
| HOS Compliance | 86% | 95% | Worse than most peers |
| Driver Fitness | 0% | 0% | Better than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 56% | 84% | 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 | 0 | — | 6.67% |
| Vehicle | 0 | 5 | — | 22.26% |
| Hazmat | 0 | 0 | — |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| Jan 1, 2026 | 0 | 1 | 1 | 1 |
| Apr 1, 2025 | 0 | 1 | 1 | 1 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 12 | 6 | 5 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Feb 24, 2026 | PA | TRUCK TRACTOR | 0 | 0 |
| Feb 16, 2026 | PA | TRUCK TRACTOR | 0 | 0 |
| Feb 13, 2026 | NY | TRUCK TRACTOR | 0 | 0 |
| Feb 4, 2026 | PA | TRUCK TRACTOR | 1 | 0 |
| Feb 3, 2026 |
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 3 | 0.15 | — |
| HOS Compliance | 3 | 0.35 | — |
| Vehicle Maintenance | 11 | 2.36 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 13 states. Top state PA accounts for 31% of activity. Activity outside home state (PA): 69%.
+8 other states with fewer inspections
| Hours-of-Service Compliance | 5 | 2 | 0 |
| Unsafe Driving | 3 | 1 | 0 |
| IL |
| TRUCK TRACTOR |
| 0 |
| 0 |
| Jan 20, 2026 | MA | TRUCK TRACTOR | 0 | 0 |
| Jan 20, 2026 | MA | TRUCK TRACTOR | 0 | 0 |
| Jan 20, 2026 | MA | TRUCK TRACTOR | 0 | 0 |
| Jan 14, 2026 | PA | TRUCK TRACTOR | 1 | 0 |
| Jan 12, 2026 | PA | TRUCK TRACTOR | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Feb 4, 2026 | 39375CTAOTDLT232 | Tires - Less than 2/32 inch tread depth | Vehicle Maintenance | — |
| Jan 14, 2026 | 39524 | HOS (ELD) - ELD Form and Manner | Hours-of-Service Compliance | — |
| Oct 13, 2025 | 39375A | Flat tire or fabric exposed | Vehicle Maintenance | Yes |
| Oct 8, 2025 | 3953A1HOSPD | HOS (Property) - Driving more than 11 hours following 10 consecutive hours off duty during the current 8 consecutive day period. Date and Time | Hours-of-Service Compliance | — |
| Oct 8, 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 | — |
| Oct 8, 2025 | 3953A3HOSPRNP | Driving beyond 11 hour driving limit in a 14-hour period. (Property carrying vehicle) - Nominal Violation | Hours-of-Service Compliance | — |
| May 15, 2025 | 39345B2BAIR | Air Brake - Hose/tubing damaged or not secured | Vehicle Maintenance | — |
| May 15, 2025 | 39395A1 | Emergency Equipment - Fire Extinguishers - no fire extinguisher present or not properly rated. | Vehicle Maintenance | — |
| Apr 29, 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 |
| Apr 22, 2025 | 39375A2TAOBB | Tires - All others bump or bulge related to tread or sidewall separation | Vehicle Maintenance | Yes |