Rock Spring Contracting Llc is an active interstate carrier based in Kensington, MD.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 6 | 2 | 0 |
| Tractors | 6 | 2 | 0 |
| Total Power Units | 16 | ||
Distinct vehicles · 24 mo
vs 16 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 79% | 90% | Worse than most peers |
| HOS Compliance | 0% | 0% | Better than most peers |
| Driver Fitness | 71% | 89% | Around peer average |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 58% | 81% | 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 | 1 | — | 6.67% |
| Vehicle | 0 | 2 | — | 22.26% |
| Hazmat | 0 | 0 | — |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| Oct 1, 2025 | 0 | 0 | 1 | 1 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 13 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Jan 14, 2026 | VA | STRAIGHT TRUCK | 2 | 0 |
| Jan 8, 2026 | MD | STRAIGHT TRUCK | 0 | 0 |
| Dec 22, 2025 | MD | STRAIGHT TRUCK | 0 | 0 |
| Dec 22, 2025 | MD | STRAIGHT TRUCK | 4 | 1 |
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 4 | 1.68 | — |
| HOS Compliance | 0 | 0.00 | — |
| Vehicle Maintenance | 6 | 3.13 | — |
| Driver Fitness | 2 | 0.39 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 3 states. Top state DC accounts for 39% of activity. Activity outside home state (MD): 68%.
| 2 |
| Unsafe Driving | 4 | 3 | 0 |
| Driver Fitness | 2 | 1 | 2 |
| Dec 4, 2025 |
| VA |
| STRAIGHT TRUCK |
| 0 |
| 0 |
| Dec 3, 2025 | MD | STRAIGHT TRUCK | 1 | 0 |
| Nov 25, 2025 | DC | STRAIGHT TRUCK | 0 | 0 |
| Nov 17, 2025 | MD | STRAIGHT TRUCK | 4 | 2 |
| Nov 10, 2025 | MD | STRAIGHT TRUCK | 0 | 0 |
| Aug 27, 2025 | MD | STRAIGHT TRUCK | 2 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Jan 14, 2026 | 39330B | Battery - Not protected | Vehicle Maintenance | — |
| Jan 14, 2026 | 3939ALLPL | Lighting - License plate lamp inoperative | Vehicle Maintenance | — |
| Dec 22, 2025 | 39347ABCLMBD | Drum Brake - Cracked/loose/missing lining/pad | Vehicle Maintenance | — |
| Dec 22, 2025 | 39347E | Brake Out of Adjustment - Roto Clamp (Short & Long) DD-3 or Bolt | Vehicle Maintenance | — |
| Dec 22, 2025 | 39353BB | Air Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear | Vehicle Maintenance | — |
| Dec 22, 2025 | 3963A1BOS | Brake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination | Vehicle Maintenance | Yes |
| Dec 3, 2025 | 3939ALFTSI | Lighting - Front - Turn signal - inoperative | Vehicle Maintenance | — |
| Nov 17, 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 17, 2025 | 3929A2C | Cargo - Vehicle components or dunnage not secured | Vehicle Maintenance | Yes |
| Nov 17, 2025 | 3939ALIL | Lighting - Identification lamp(s) inoperative | Vehicle Maintenance | — |