DBA: Jesse Diefenderfer & Sons
Dennis Diefenderfer Rodney Diefenderfer And Joseph Diefenderfer is an active interstate carrier based in East Fallowfield, PA.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 4 | 0 | 0 |
| Tractors | 3 | 1 | 0 |
| Trailers | 15 | 0 | 0 |
| Total Power Units | 4 | ||
Distinct vehicles · 24 mo
vs 4 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 | 99% | 98% | Worse than most peers |
| HOS Compliance | 0% | 0% | Better than most peers |
| Driver Fitness | 0% | 0% | Better than most peers |
| Controlled Substances | 0% | 0% | Better 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 | 0 | — | 6.67% |
| Vehicle | 0 | 1 | — | 22.26% |
| Hazmat | 0 | 0 | — | 4.44% |
Where they run
Inspected in 4 states. Top state DE accounts for 25% of activity.
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| No crashes recorded | 0 | 0 | 0 | 0 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Unsafe Driving | 2 | 1 | 0 |
| Vehicle Maintenance | 2 | 0 | 1 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Feb 24, 2026 | DE | TRUCK TRACTOR | 1 | 0 |
| Dec 15, 2025 | NJ | TRUCK TRACTOR | 1 | 0 |
| May 20, 2025 | FL | TRUCK TRACTOR | 0 | 0 |
| Sep 21, 2024 | IL | TRUCK TRACTOR | 2 | 1 |
Alexander Zdankowski
No alertsEast Fallowfield, PA · 1 units
Chips Tree Service Inc
No alertsEast Fallowfield, PA · 3 units
Dennis Rodney Joseph And Richard Diefenderfer
No alertsEast Fallowfield, PA · 3 units
Marcus D Smith Sr
No alertsEast Fallowfield, PA · 1 units
R&L Power Corp Inc
No alertsEast Fallowfield, PA · 3 units
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 2 | 13.51 | — |
| HOS Compliance | 0 | 0.00 | — |
| Vehicle Maintenance | 1 | 8.00 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Feb 24, 2026 | 3922SLLS4 | State/Local Laws - Speeding 15 or more miles per hour over the speed limit | Unsafe Driving | — |
| Dec 15, 2025 | 3922SLLILC | State/Local Laws - Improper lane change | Unsafe Driving | — |
| Sep 21, 2024 | 39347A | Inadequate brakes for safe stopping - Brake Lining condition | Vehicle Maintenance | Yes |
| Sep 21, 2024 | 3939 | Inoperable Required Lamp | Vehicle Maintenance | — |