| Y 4.Ac 2 | Committee on Accounts (House) |
| Y 4.Ad 6 | Commission on Administrative Review (House) |
| Y 4.Ae 8 | Committee on Aeronautical and Space Sciences (Senate) |
| Y 4.Ag 4 | Special Committee on Aging (Senate) |
| Y 4.Ag 4/2 | Select Committee on Aging (House) |
| Y 4.Ag 8/1 | Committee on Agriculture (House) |
| Y 4.Ag 8/2 | Committee on Agriculture and Forestry (Senate) |
| Y 4.Ag 8/3 | Committee on Agriculture, Nutrition, and Forestry (Senate) |
| Y 4.Ai 7 | Select Committee of Inquiry into Operations of Air Services (House) |
| Y 4.Ai 7/2 | Special Committee on Investigation of Air Mail and Ocean Mail Contracts (Senate) |
| Y 4.Al 1/1 | Joint Select Committee on Alcohol in Manufactures and Arts |
| Y 4.Al 1/2 | Committee on Alcohol Liquor Traffic (House) |
| Y 4.Am 3/1 | Committee on American Ship-Building (House) |
| Y 4.Am 3/2 | Special Committee on Investigation of American Sugar Refining Company (House) |
| Y 4.Am 3/3 | Special Committee to Investigate American Retail Federation |
| Y 4.Am 3/4 | Special Committee to Investigate Conditions in the American Merchant Marine |
| Y 4.Am 3/5 | Special Committee to Study Problems of American Small Business (Senate) |
| Y 4.Ap 6/1 | Committee on Appropriations (House) |
| Y 4.Ap 6/2 | Committee on Appropriations (Senate) |
| Y 4.Ar 5 | Special Committee to Investigate the Cost of Armor Plant |
| Y 4.Ar 5/2 | Committee on Armed Services (House) |
| Y 4.Ar 5/3 | Committee on Armed Services (Senate) |
| Y 4.Ar 7 | Commission on Art (Senate) |
| Y 4.As 7 | Select Committee on Assassinations (House) |
| Y 4.As 8 | Select Committee on Astronautics and Space Exploration (House) |
| Y 4.At 7 | Special Committee on Atomic Energy (Senate) |
| Y 4.At 7/2 | Joint Committee on Atomic Energy |
| Y 4.At 8 | Select Committee on Investigation of the Attorney General (Senate) |
