Public carrier profile
503 Transportation Inc
USDOT 3240407
Allowed to operateChecking your watchlist…
Look up another DOTIdentity and status
- USDOT
- 3240407
- MC number
- 1017678
- Status
- ActiveA
- Allowed to operate
- Yes
- Location
- Carson, CA
Authority
- Common authority
- UnknownActive
- Contract authority
- UnknownNone
- Broker authority
- UnknownNone
- Authority history events
- 10
- Authority history
- Mar 5, 2020 – May 1, 2026
Fleet
- Power units
- 7
- Drivers
- 7
Insurance
- Active filings
- 2
- Insurer
- UNITED FINANCIAL CASUALTY COMPANY
- Maximum coverage
- $750
- Effective date
- May 2, 2026
- Estimated renewal window
- May 2027 (estimated)
Estimate, not a policy date.
Safety history
- Inspections
- 18
- Out-of-service inspections
- 8
- Driver OOS
- 1
- Vehicle OOS
- 11
- Hazmat OOS
- 0
- Violations
- 22
- Last inspection
- Apr 9, 2026
Public record refreshed 10/27/2026.