JACK T IRWIN INC
DBA: IRWINSTONE
JACK T IRWIN INC is a motor carrier based in ROCKVILLE, Maryland, registered with FMCSA since 1974. With 6 power units and 6 drivers, the company operates as a smaller fleet carrier. Their vehicle out-of-service rate of 0.0% is below the national average of 20.7%, suggesting relatively well-maintained equipment. The carrier has only 0% of required liability insurance on file — a coverage gap of $750K. Our composite safety score rates this carrier at 65/100, indicating a mixed safety profile that warrants closer review.
Insurance Coverage Gap
This carrier has $0 in liability insurance on file but $750K is required — a shortfall of $750K (0% of required coverage).
Company Details
- Legal Name
- JACK T IRWIN INC
- USDOT Number
- 32659
- Entity Type
- CARRIER
- Address
- 601 E GUDE DR
ROCKVILLE, MD 20850 - Phone
- (301) 762-5800
- Carrier Operation
- Interstate
- Last MCS-150 Update
- November 10, 2025
Inspection Record
| Type | Total | OOS | Rate | Nat'l Avg |
|---|---|---|---|---|
| Vehicle | 1 | 0 | 0.0% | 20.7% |
| Driver | 1 | 0 | 0.0% | 5.5% |
| Hazmat | 0 | 0 | 0.0% | 4.5% |
BASICs Safety Scores
Higher percentile = worse safety performance. Scores above 75% may trigger FMCSA intervention.
Location
601 E GUDE DR, ROCKVILLE, MD 20850
Frequently Asked Questions
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Source: FMCSA Safety and Fitness Electronic Records (SAFER) System