DBA: Dcb
Delaware Cornerstone Builders Inc is an active interstate carrier based in Landover, MD.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 2 | 0 | 0 |
| Trailers | 3 | 0 | 0 |
| Total Power Units | 2 | ||
Distinct vehicles · 24 mo
vs 2 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 | 96% | 96% | Worse than most peers |
| HOS Compliance | 0% | 0% | Better than most peers |
| Driver Fitness | 93% | 95% | Worse than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 96% | 97% | 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 | 2 | — | 22.26% |
| Hazmat | 0 | 0 | — | 4.44% |
Where they run
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| No crashes recorded | 0 | 0 | 0 | 0 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 21 | 7 | 2 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Feb 24, 2026 | PA | STRAIGHT TRUCK | 4 | 0 |
| Dec 31, 2025 | MD | STRAIGHT TRUCK | 6 | 1 |
| Nov 14, 2025 | MD | STRAIGHT TRUCK | 7 | 2 |
| Jun 25, 2025 | VA | STRAIGHT TRUCK | 0 | 0 |
Carriers that share an officer, phone, or email with this DOT.
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 1 | 5.40 | — |
| HOS Compliance | 0 | 0.00 | — |
| Vehicle Maintenance | 4 | 17.70 | — |
| Driver Fitness | 1 | 1.42 | — |
| Controlled Substances | 0 | 0.00 | — |
Inspected in 3 states. Top state MD accounts for 71% of activity. Activity outside home state (MD): 29%.
| Driver Fitness |
| 1 |
| 1 |
| 1 |
| Unsafe Driving | 1 | 1 | 0 |
| Jan 13, 2025 | MD | STRAIGHT TRUCK | 0 | 0 |
| Jan 9, 2025 | MD | STRAIGHT TRUCK | 4 | 0 |
| Apr 11, 2024 | MD | STRAIGHT TRUCK | 2 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Feb 24, 2026 | 39311A1LPL | Lighting - Parking lamp(s) missing | Vehicle Maintenance | — |
| Feb 24, 2026 | 39355C2B | Air Brake - CMV other than truck-tractor manufactured on or after March 1 1998 not equipped with an antilock brake system. System does not function or indicates | Vehicle Maintenance | — |
| Feb 24, 2026 | 39378AWS | Washers - Inoperative washing system. | Vehicle Maintenance | — |
| Feb 24, 2026 | 39395A1 | Emergency Equipment - Fire Extinguishers - no fire extinguisher present or not properly rated. | Vehicle Maintenance | — |
| Dec 31, 2025 | 3939ALHWS | Lighting - Hazard warning signal(s) inoperative | Vehicle Maintenance | — |
| Dec 31, 2025 | 3939ALIL | Lighting - Identification lamp(s) inoperative | Vehicle Maintenance | — |
| Dec 31, 2025 | 3939ALLPL | Lighting - License plate lamp inoperative | Vehicle Maintenance | — |
| Dec 31, 2025 | 3939ALRLI | Lighting - Tail lamp - Any inoperative | Vehicle Maintenance | — |
| Dec 31, 2025 | 3939ALSLI | Lighting - Stop lamps - Any inoperative. | Vehicle Maintenance | — |
| Dec 31, 2025 | 3939ALTSI | Lighting - Turn signal - Any inoperative on the rearmost vehicle. | Vehicle Maintenance | Yes |