- Appraisers (Treasury Department)22
- Appraisers, General, Board of29
- Apprentice-Training Service58
- Apprenticeship Bureau228
- Apprenticeship and Training Bureau173
- Appropriations Committee2,850
- Appropriations Committee, House1,199
- Appropriations Committee, Senate943
- Appropriations, Committee on36
- Aransas Pass Improvements Board2
- Archaeologist for Interior Department3
- Architect of Capitol159
- Architect, Supervising1,816
- Architect, Supervising (Treasury Department)3
- Architecture and Construction of Republic Buildings, Bureau of1
- Area Development Office47
- Area Redevelopment Administration223
- Arizona21
- Arizona (Interior Department)3
- Arkansas Hot Springs Reservation9