Data / Carriers / California / National Steel and Shipbuilding Company
National Steel and Shipbuilding Company, USDOT 3229597
Updated November 7, 2026. Source: US Department of Transportation, FMCSA Motor Carrier Census, Inspection, Crash and Licensing files.
National Steel and Shipbuilding Company (USDOT 3229597) is an intrastate (non hazardous materials) carrier in San Diego, CA, registered with FMCSA with 46 power units and 20 drivers as it reports them. FMCSA recorded 10 roadside inspections from November 7, 2024 to November 7, 2026, the latest on June 15, 2026. Its vehicle out of service rate was 0.0% against 22.9% for all carriers (0 of 10 vehicle inspections). The states reported no crash in the same period.
The request: Watch National Steel and Shipbuilding Company (USDOT 3229597): each new inspection, crash and authority change. $10 of work on sign-up, no card.
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- USDOT number
- 3229597
- Also does business as
- Nassco
- Location
- 2798 Harbor DR M S 29 Transpor, San Diego, CA 92113
- Phone
- (619) 544 8888
- Operation
- Intrastate (non hazardous materials); private property
- Operating authority
- No active operating authority on file with FMCSA
- Power units
- 46, of which 6 buses
- Drivers
- 20 (10 with a commercial licence)
- Miles reported
- 100,000 in 2025
- Cargo carried
- General freight, Metal sheets, coils and rolls, Logs, poles, beams and lumber, Building materials, Machinery and large objects, Liquids and gases, Intermodal containers, Passengers, Utilities
- Hazardous materials
- Yes, as the carrier reports
- Last registration update
- July 15, 2025
- In the FMCSA register since
- January 7, 2019
- FMCSA safety measurement page
- ai.fmcsa.dot.gov
Inspections and out of service rates
Roadside inspections from November 7, 2024 to November 7, 2026. The national rate is the rate across every carrier in the same window.
| Measure | Inspections | Out of service | Rate | National rate | Against national |
|---|---|---|---|---|---|
| Vehicle inspections | 10 | 0 | 0% | 22.9% | 22.9 points below the national rate |
| All inspections, any out of service order | 10 | 0 | 0% | 19.4% |
Also on SpecStream
- Carriers in California
- Carriers in San Diego, CA
- New trucking companies in California
- General freight carriers in California
- Metal sheets, coils and rolls carriers in California
- Logs, poles, beams and lumber carriers in California
Public domain (U.S. government work). Inspection and crash counts cover November 7, 2024 to November 7, 2026. Fleet size, drivers, cargo and operation are as each carrier reports them to FMCSA and can be out of date. A vehicle or driver out of service order means an inspector ordered the vehicle or driver off the road until the problem was fixed. The national rate comes from every inspection in the same window. Crashes are those state police reported to FMCSA and are not a finding of fault. This page uses US Department of Transportation data and is not endorsed or certified by the Department of Transportation or FMCSA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.