Clark Service Group Inc is an active interstate carrier based in Lancaster, PA.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 2 | 1 | 0 |
| Trailers | 10 | 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 | Insp w/ Viol |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 90% | 91% | Worse than most peers |
| HOS Compliance | 0% | 0% | Better than most peers |
| Driver Fitness | 92% | 94% | Worse than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 82% | 81% | 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 | 1 | — | 6.67% |
| Vehicle | 0 | 0 | — | 22.26% |
| Hazmat | 0 | 0 | — | 4.44% |
Where they run
Inspected in 2 states. Top state accounts for of activity.
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| No crashes recorded | 0 | 0 | 0 | 0 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Oct 20, 2025 | MD | STRAIGHT TRUCK | 1 | 1 |
| Jul 10, 2025 | MD | STRAIGHT TRUCK | 0 | 0 |
| Nov 13, 2024 | PA | STRAIGHT TRUCK | 1 | 0 |
| Oct 15, 2024 | MD | STRAIGHT TRUCK | 0 | 0 |
Carriers that share an officer, phone, or email with this DOT.
Shared officer · 5
Cedar Removal Of Oklahoma Llc
Norman, OK
Glenn Clark Jr. · also at 5 others
Clark Fire Protection
Lancaster, PA
Glenn Clark Jr. · also at 5 others
Glenn A Clark
Dedham, ME
Glenn Clark Jr. · also at 5 others
Glenn Clark
Moss Point, MS
Glenn Clark Jr. · also at 5 others
Glenn Clark
Hugo, OK
Glenn Clark Jr. · also at 5 others
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 1 | 1.61 | — |
| HOS Compliance | 0 | 0.00 | — |
| Vehicle Maintenance | 1 | 1.42 | — |
| Driver Fitness | 1 | 0.75 | — |
| Controlled Substances | 0 | 0.00 | — |
| 3 |
| 0 |
| 1 |
| Driver Fitness | 1 | 0 | 1 |
| Unsafe Driving | 1 | 1 | 0 |
| Sep 3, 2024 |
| MD |
| STRAIGHT TRUCK |
| 3 |
| 1 |
| Aug 15, 2024 | MD | STRAIGHT TRUCK | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Oct 20, 2025 | 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 |
| Nov 13, 2024 | 39216 | Failing to use seat belt while operating a CMV | Unsafe Driving | — |
| Sep 3, 2024 | 39347E | Brake Out of Adjustment - Roto Clamp (Short & Long) DD-3 or Bolt | Vehicle Maintenance | — |
| Sep 3, 2024 | 39353B | CMV manufactured after 10/19/94 has an automatic airbrake adjustment system that fails to compensate for wear | Vehicle Maintenance | — |
| Sep 3, 2024 | 3963A1BOS | BRAKES OUT OF SERVICE: The number of defective brakes is equal to or greater than 20 percent of the service brakes on the vehicle or combination | Vehicle Maintenance | Yes |
Shared phone · 1