Cargo Tank & DOT Inspections
Certified Inspection Services for Tanks and Transportation Equipment
TWS provides certified DOT cargo tank inspections and related repair services for transportation, trucking, industrial, and commercial customers.
With certified capabilities, a large-capacity facility, and field service support, TWS helps customers maintain compliance, reduce downtime, and keep equipment working safely.
DOT Cargo Tank Inspection Services
TWS provides inspection and repair support for cargo tanks, tankers, trailers, and transportation-related equipment. Services are available for qualifying customers who need certified inspection work, repairs, alterations, and documentation support.
Federal Annual Inspections
External Inspections
Internal Inspections
Thickness Testing
Lining Inspections
Leakage and Pressure Tests
Pneumatic, Hydrostatic, MC 330/331
Internal Vapor Valve Tests
Bi-Annual Tote Qualifications
Trailer Inspections
90-Day Trailer Preventative Maintenance Inspections
Certified Repair Capabilities
TWS supports cargo tank and DOT inspection customers with:



- Shop and Field Repair Services
- Tanker and Trailer Experts
- Industrial-size Facility Capacity
- Licensed and Insured Service
- Certiified DOT Cargo Tank Inspections
- R-Stamp Code Repairs
- National Board Certified Repairs and Alterations
- Non-code Repairs
Shop and Field Support
TWS can complete work in the shop or in the field depending on the project, equipment, and repair needs. The large shop allows for oversized equipment, tankers, trailers, and inspection-related repair work.
Reduce Downtime & Stay Compliant
DOT inspection and cargo tank repair work requires accuracy, documentation, and experience. TWS helps customers address inspection needs, repair requirements, and compliance-related work with reliable service and clear communication.
Need certified DOT cargo tank inspection service or related repair work?
