Department of Transportation
Abbreviation: DOT
Secretary of Transportation (as of 2026): Sean Duffy
2026 Budget: $110B
CGAC Code: 6900
Website: transportation.gov
The Department of Transportation ensures America has the safest, most efficient, and modern transportation system in the world. It oversees federal highway, air, railroad, maritime, and transit programs, and regulates pipelines carrying hazardous liquids and natural gas.
Formula and discretionary programs flow from DOT to state DOTs, transit agencies, airports, and ports, and the department issues safety regulations for aircraft, motor vehicles, commercial trucks and buses, and passenger rail.
Sub-Departments
Bureaus, services, and major components within DOT.
Federal Aviation Administration
Regulates civil aviation, operates the air traffic control system, and certifies aircraft and airmen.
Federal Highway Administration
Supports state and local governments in the design, construction, and maintenance of the National Highway System.
Federal Motor Carrier Safety Administration
Prevents commercial motor vehicle-related fatalities and injuries through regulations and inspections.
Federal Railroad Administration
Enforces rail safety regulations and administers financial assistance for railroad infrastructure.
Federal Transit Administration
Provides financial and technical assistance to local public transit systems.
Maritime Administration
Promotes the use of waterborne transportation and its integration with the nation's intermodal system.
National Highway Traffic Safety Administration
Sets motor vehicle safety standards, runs recall investigations, and administers state highway safety grants.
Pipeline and Hazardous Materials Safety Administration
Regulates the safe transport of hazardous materials and oversees pipeline safety.
How to Win DOT Contracts
Winning work at the Department of Transportationmeans understanding a procurement culture that blends rigorous compliance, deep mission focus, and a preference for vendors who can speak the agency's language from day one. This guide walks through how DOT buys, the vehicles it uses, and the steps your company should take to go from registered vendor to awarded contractor.
Understanding DOT Procurement
The Department of Transportation obligates roughly $8-10B in contracts annually across the Federal Highway Administration (FHWA), Federal Aviation Administration (FAA), Federal Transit Administration (FTA), Federal Railroad Administration (FRA), Maritime Administration (MARAD), PHMSA, NHTSA, and Volpe. FAA’s air traffic modernization portfolio is the largest single procurement program.
DOT procurement is heavily technology- and infrastructure-driven: NextGen air traffic management, positive train control, autonomous-vehicle research, intelligent transportation systems (ITS), and bridge/highway infrastructure investment under IIJA.
How DOT Buys
FAA uses the Acquisition Management System (AMS), not the FAR, giving it unique procurement flexibility. FAA operates multi-billion-dollar enterprise services contracts (e-FAST, NISC IV, ATO vehicles) for NextGen, telecoms, and operations.
FHWA, FTA, and FRA issue smaller research and program-support contracts plus federal-aid program oversight. DOT OST uses GSA MAS, OASIS+, and NITAAC for cross-agency professional services.
Major Contract Vehicles
- FAA e-FAST— FAA’s Electronic FAA Accelerated and Simplified Tasks IDIQ for small-dollar rapid acquisitions.
- FAA NISC IV (National Airspace Integrated Services Contract)— Major aviation systems support IDIQ.
- FAA SE2020— Systems Engineering 2020 IDIQ for air traffic systems engineering services.
- DOT OASIS+— Primary GWAC for DOT professional services across OST and modal administrations.
- FHWA and FTA Research IDIQs— Research, technical assistance, and safety program contracts.
Step 1: Get Registered and Compliant
Required Registrations
DOT-Specific Requirements
Certification Programs
Step 2: Identify Opportunities
Primary Sources
Key Offices
Top Contract Types
Step 3: Position Your Company
Build Relationships
Relevant NAICS Codes
- 541330–Engineering Services
- 541512–Computer Systems Design
- 541611–Management Consulting
- 541715–Scientific R&D
- 237310–Highway, Street, and Bridge Construction
- 541370–Surveying and Mapping
- 541990–Professional Services NEC
Step 4: Develop Winning Proposals
Technical Approach
Past Performance
Pricing Strategy
Winning Strategies
- Specialize by modal administration, since FAA, FHWA, FTA, FRA, and NHTSA are effectively separate markets.
- For FAA, build AMS fluency. FAR-only vendors are at a structural disadvantage.
- Track IIJA-driven spend across FHWA, FTA, and FRA, a multi-year tailwind for transportation procurement.
- Partner with FAA NAS incumbents for subcontract entry; FAA NAS is among the highest-barriers markets in federal.
- Invest in systems-engineering and cybersecurity credentials; FAA modernization requires both in depth.
Common Mistakes to Avoid
- Treating FAA like any other FAR agency. AMS-specific clauses, evaluation factors, and dispute procedures differ meaningfully.
- Under-pricing FAA NAS task orders. NAS operational complexity drives real costs that low bidders rarely recover.
- Missing Title VI and DBE considerations on FTA-adjacent work. These are evaluation factors, not afterthoughts.
Small Business Programs
DOT meets or exceeds most small-business goals. 8(a) and SDVOSB are active across modes. DBE utilization on federal-aid work is extensive (though managed by grantees, not federal primes).
Key Contracting Offices
- FAA William J. Hughes Technical Center Acquisition Services — Atlantic City, NJ
- FAA Enterprise Services Center — Washington, DC
- FHWA Office of Acquisition Management — Washington, DC
- FTA Office of Acquisition and Grants Management — Washington, DC
- OST Office of the Senior Procurement Executive — Washington, DC
DOT by the Numbers
Ready to Win DOT Contracts?
Stop guessing — let Blacksmith AI draft your next winning proposal.