Millstone Corporation is an active interstate carrier based in Upper Marlboro, MD.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 8 | 0 | 0 |
| Total Power Units | 8 | ||
Distinct vehicles · 24 mo
vs 8 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 | 68% | 89% | Around peer average |
| 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 | 92% | 95% | 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 1 state. Top state MD accounts for 100% of activity. Activity outside home state (MD): 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 | 9 | 3 | 4 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Sep 24, 2025 | MD | STRAIGHT TRUCK | 3 | 1 |
| Mar 10, 2025 | MD | STRAIGHT TRUCK | 2 | 0 |
| Jul 22, 2024 | MD | STRAIGHT TRUCK | 5 | 4 |
Carriers that share an officer, phone, or email with this DOT.
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 1 | 1.25 | — |
| HOS Compliance | 0 | 0.00 | — |
| Vehicle Maintenance | 3 | 13.00 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
| Unsafe Driving |
| 1 |
| 0 |
| 0 |
| Date |
|---|
| Code |
|---|
| Description |
|---|
| BASIC |
|---|
| OOS |
|---|
| Sep 24, 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 | — |
| Sep 24, 2025 | 39345B2BHTD | Air Brake - Hose/tubing damage into the outer reinforcement ply. | Vehicle Maintenance | Yes |
| Sep 24, 2025 | 3939ALIL | Lighting - Identification lamp(s) inoperative | Vehicle Maintenance | — |
| Mar 10, 2025 | 39345B2BAIR | Air Brake - Hose/tubing damaged or not secured | Vehicle Maintenance | — |
| Mar 10, 2025 | 3939ALIL | Lighting - Identification lamp(s) inoperative | Vehicle Maintenance | — |
| Jul 22, 2024 | 3939TS | Inoperative turn signal | Vehicle Maintenance | Yes |
| Jul 22, 2024 | 39342 | No brakes as required - Explain: | Vehicle Maintenance | Yes |
| Jul 22, 2024 | 3939 | Inoperable Required Lamp | Vehicle Maintenance | — |
| Jul 22, 2024 | 3939BRKLAMP | Inoperative Brake Lamps | Vehicle Maintenance | Yes |
| Jul 22, 2024 | 3939T | Inoperable tail lamp | Vehicle Maintenance | — |
John Robertson Miller Sr
Saint Thomas, PA
John R Miller · also at 8 others