DBA: One Hour Air Conditioning & Heating
Herbert W Collins Inc is an active intrastate non-hazmat carrier based in Mount Airy, MD.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 3 | 3 | 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 |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 96% | 97% | Worse than most peers |
| HOS Compliance | 0% | 0% | Better than most peers |
| Driver Fitness | 91% | 93% | Worse than most peers |
| Controlled Substances | 100% | 100% | Worse than most peers |
| Vehicle Maintenance | 81% | 85% | 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 | 6 | — | 6.67% |
| Vehicle | 0 | 0 | — | 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 | 6 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Jul 10, 2025 | MD | STRAIGHT TRUCK | 8 | 1 |
| Apr 16, 2025 | MD | STRAIGHT TRUCK | 2 | 1 |
| Feb 13, 2025 | MD | STRAIGHT TRUCK | 2 | 2 |
| Feb 3, 2025 | MD | STRAIGHT TRUCK | 0 |
Carriers that share an officer, phone, or email with this DOT.
Shared officer · 7
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 1 | 9.33 | — |
| HOS Compliance | 0 | 0.00 | — |
| Vehicle Maintenance | 2 | 2.92 | — |
| Driver Fitness | 2 | 0.69 | — |
| Controlled Substances | 2 | 3.07 | — |
Inspected in 1 state. Top state MD accounts for 100% of activity. Activity outside home state (MD): 0%.
| 2 |
| 0 |
| Controlled Substances/​Alcohol | 4 | 4 | 4 |
| Driver Fitness | 3 | 0 | 2 |
| Unsafe Driving | 2 | 2 | 0 |
| 0 |
| Dec 3, 2024 | MD | STRAIGHT TRUCK | 2 | 2 |
| Jun 26, 2024 | MD | STRAIGHT TRUCK | 0 | 0 |
| Apr 4, 2024 | MD | STRAIGHT TRUCK | 1 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Jul 10, 2025 | 3939ALIL | Lighting - Identification lamp(s) inoperative | Vehicle Maintenance | — |
| Jul 10, 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 |
| Jul 10, 2025 | 39216BDPASS | Driver - Failed to require passenger(s) (not a co-driver) to use seat belt while operating a property-carrying CMV. | Unsafe Driving | — |
| Jul 10, 2025 | 39216D | Driver - Failed to use seat belt while operating a CMV | Unsafe Driving | — |
| Jul 10, 2025 | 3939ALCL | Lighting - Clearance lamp(s) inoperative | Vehicle Maintenance | — |
| Jul 10, 2025 | 3939ALLPL | Lighting - License plate lamp inoperative | Vehicle Maintenance | — |
| Jul 10, 2025 | 3939ALRLI | Lighting - Tail lamp - Any inoperative | Vehicle Maintenance | — |
| Jul 10, 2025 | 3969D2FTF | Failing to correct the violation(s)/defect(s) noted on the roadside inspection report | Vehicle Maintenance | — |
| Apr 16, 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 |
| Apr 16, 2025 | 3939ALRLI | Lighting - Tail lamp - Any inoperative | Vehicle Maintenance | — |
The Material Yard Inc
Mundelein, IL
Terry Fisher · also at 7 others