JACK T IRWIN INC
USDOT 32659 · Doing business as IRWINSTONE
Active, interstate carrier, small fleet (6 power units) — no FMCSA safety rating on record (common).
Vetting summary
At a glance
- Out-of-service rate75% vs 19.1% national avg
- Linked registrations1 share this carrier's phone or address
These signals summarize the records shown below — they are a starting point for your own checks, not a judgment of the carrier.
Registration
Carrier identity
| USDOT Number | 32659 |
|---|---|
| MC Number | — |
| Legal Name | JACK T IRWIN INC |
| DBA Name | IRWINSTONE |
| Entity Type | CORPORATION |
| Phone | 3017625800 |
| Address | 601 E GUDE DR, Rockville, MD, 20850 |
Status
Authority & safety
| Operating Status | Active |
|---|---|
| Operation Type | Interstate |
| Safety Rating | None on record — most carriers have not received a formal FMCSA safety rating. |
| Hazmat Flag | false |
Safety ratings: S = Satisfactory, C = Conditional, U = Unsatisfactory. A carrier with no rating has not been through a full FMCSA compliance review — this is common and not itself a red flag.
Our scoring
Safety scores
| Unsafe Driving | 0 / 100 |
|---|---|
| Hours-of-Service Compliance | 0 / 100 |
| Driver Fitness | 0 / 100 |
| Controlled Substances & Alcohol | 0 / 100 |
| Vehicle Maintenance | 93 / 100 |
Scores are 0-100 rankings computed by us from public FMCSA inspection measures; higher = worse relative to peers. Not official CSA/BASIC percentiles. How these scores are computed.
Safety events
Inspections & crashes (last 24 months)
| Inspections | 4 |
|---|---|
| Out-of-Service Rate | 75% vs 19.1% national average |
Most frequent violation categories: 25 (3), 20 (2), 14 (1).
Crash involvement does not imply fault. FMCSA crash records list all reportable crashes involving a carrier, regardless of who caused them.
Signals
Linked registrations
1 other active carrier registration share this carrier's phone or address in FMCSA records.
Shared contact details can have many ordinary explanations, such as a shared dispatch service, registration agent, or office address.
Equipment
Fleet & operations
| Power Units (trucks) | 6 |
|---|---|
| Drivers | 6 |
| Recent Annual Mileage | 75,000 |
| Last MCS-150 Filing | 10-NOV-25 |
JACK T IRWIN INC operates 6 power units — a larger fleet than 93% of carriers registered in MD.
Nearby
Other carriers in Rockville, MD
- MONTGOMERY COUNTY GOVERNMENT — USDOT 522663, 881 power units
- O'BOYLE TANK LINES INC — USDOT 126804, 208 power units
- THE ROOF CENTER INC — USDOT 344278, 105 power units
- FRANCIS O DAY CO INC — USDOT 286446, 100 power units
- WILCOXON CONSTRUCTION INC — USDOT 256339, 58 power units
Browse all carriers in Rockville, MD or all MD carriers.