Superior Mechanical Services Inc is an active interstate carrier based in Beltsville, MD.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 65 | 0 | 0 |
| Trailers | 6 | 0 | 0 |
| Total Power Units | 65 | ||
Distinct vehicles · 24 mo
vs 65 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 61% | 87% | Around peer average |
| HOS Compliance | 0% | 0% | Better than most peers |
| Driver Fitness | 77% | 88% | Worse than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 89% | 86% | 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 | 5 | — | 22.26% |
| Hazmat | 0 | 0 | — |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| No crashes recorded | 0 | 0 | 0 | 0 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 8 | 4 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Feb 25, 2026 | MD | STRAIGHT TRUCK | 2 | 2 |
| Jan 9, 2026 | MD | STRAIGHT TRUCK | 2 | 1 |
| Oct 22, 2025 | MD | STRAIGHT TRUCK | 0 | 0 |
| Aug 25, 2025 | MD | STRAIGHT TRUCK | 1 |
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 2 | 0.37 | — |
| HOS Compliance | 0 | 0.00 | — |
| Vehicle Maintenance | 5 | 5.04 | — |
| Driver Fitness | 1 | 0.28 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 2 states. Top state MD accounts for 91% of activity. Activity outside home state (MD): 9%.
| 5 |
| Unsafe Driving | 3 | 1 | 0 |
| Driver Fitness | 1 | 0 | 1 |
| Aug 13, 2025 | MD | STRAIGHT TRUCK | 2 | 0 |
| Aug 8, 2025 | MD | STRAIGHT TRUCK | 1 | 0 |
| May 19, 2025 | MD | STRAIGHT TRUCK | 0 | 0 |
| Mar 25, 2025 | MD | STRAIGHT TRUCK | 1 | 0 |
| Jan 8, 2025 | US | STRAIGHT TRUCK | 2 | 2 |
| Dec 19, 2024 | MD | STRAIGHT TRUCK | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Feb 25, 2026 | 393100BC | Cargo - Cargo not secured to prevent leaking/spilling/blowing/falling from CMV | Vehicle Maintenance | Yes |
| Feb 25, 2026 | 39375A3TFL | Tires - Front leaking or inflation 50% or less than of the maximum inflation pressure | Vehicle Maintenance | Yes |
| Jan 9, 2026 | 39341BNPB | Brake - Inoperative or missing parking brake on power unit | Vehicle Maintenance | Yes |
| Jan 9, 2026 | 39395A4EEUS | Emergency Equipment - Fire Extinguishers - unsecured | Vehicle Maintenance | — |
| Aug 25, 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 |
| Aug 13, 2025 | 39216D | Driver - Failed to use seat belt while operating a CMV | Unsafe Driving | — |
| Aug 13, 2025 | 3922SLLTCD | State/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g. safety official signal sign light lane marking other | Unsafe Driving | — |
| Aug 8, 2025 | 3939ALCL | Lighting - Clearance lamp(s) inoperative | Vehicle Maintenance | — |
| Mar 25, 2025 | 3939AHLLH | Lighting - Headlamp(s) fail to operate on low and high beam | Vehicle Maintenance | — |
| Jan 8, 2025 | 393100BC | Cargo - Cargo not secured to prevent leaking/spilling/blowing/falling from CMV | Vehicle Maintenance | Yes |