Public carrier profile
Superior Welding Supply Co
USDOT 1830
Allowed to operateChecking your watchlist…
Look up another DOTIdentity and status
- USDOT
- 1830
- Status
- ActiveA
- Allowed to operate
- Yes
- Location
- Waterloo, IA
Authority
- Authority history events
- 0
Fleet
- Power units
- 24
- Drivers
- 16
Insurance
- Active filings
- 0
Safety history
- Inspections
- 2
- Out-of-service inspections
- 0
- Driver OOS
- 0
- Vehicle OOS
- 0
- Hazmat OOS
- 0
- Violations
- 1
- Last inspection
- Feb 5, 2026
Public record refreshed 10/27/2026.