| DOT Operating Administration | RD&T Programs |
|---|---|
| DOT-wide | Crossmodal Human Factors Research* |
| FAA | Advanced Technology Development and Prototyping |
| Aircraft Safety Technology | |
| Airport Technology | |
| Aviation Weather Program | |
| Commercial Space Transportation | |
| Human Factors and Aerospace Medicine | |
| FHWA | Highway Operations |
| ITS Safety** | |
| Pavement Research | |
| Planning and Decision Making Research | |
| Safety Research and Technology | |
| Structures Research | |
| Training and Education | |
| FMCSA | Produce Safer Drivers |
| Improve Safety of Commercial Motor Vehicles | |
| Produce Safer Carriers | |
| Advance Safety through Information-Based Initiatives | |
| Improve Security through Safety Initiatives | |
| Enable and Motivate Internal Excellence | |
| FRA | Grade Crossings |
| Hazardous Materials Transportation | |
| Human Factors | |
| Nationwide Differential Global Positioning System (NDGPS)* | |
| R&D Facilities and Test Equipment | |
| Railroad System Issues | |
| Rolling Stock and Components | |
| Track and Structures | |
| Track and Train Interaction | |
| Signal and Train Control | |
| Train Occupant Protection | |
| FTA | Safety and Security |
| NHTSA | Crash Avoidance |
| Crashworthiness | |
| Data Programs | |
| Highway Safety Research | |
| Hydrogen Initiative | |
| Vehicle Research and Test Center | |
| OST | Transportation Planning, Research, and Development* |
| PHMSA | Hazardous Materials Safety |
| Pipeline Safety | |
| RITA | Hydrogen R&D* |
*Crossmodal.
**Indicates the historical location of the ITS program. Changes may result from Congressional direction established in the final passed surface transportation reauthorization. The ITS program involves several DOT operating administrations.