Research, Development, Test and Evaluation (RDT&E) Budget Activities (BAs) Consists of all efforts funded from an RDT&E appropriation account. Titles and definitions are used for budgeting purposes and managed by the Under Secretary of Defense (Comptroller) (USD(C)). Coincident with the transmittal of the President's Budget (PB), the USD(C) provides the DoD Oversight Committees of Congress a listing of all RDT&E Programs called the R-1 Form. There are seven RDT&E Budget Activities (BAs) as shown below:1. BA 1: Basic Research2. BA 2: Applied Research3. BA 3: Advanced Technology Development (ATD)4. BA 4: Advanced Component Development and Prototypes (ACD&P)5. BA 5: System Development and Demonstration (SDD)6. BA 6: RDT&E Management Support7. BA 7: Operational Systems Development