| Y 4.L 11 | Committee on Labor (House) |
| Y 4.L 11/2 | Committee on Labor and Public Welfare (Senate) |
| Y 4.L 11/3 | Joint Committee on Labor Management Relations |
| Y 4.L 11/4 | Committee on Health, Education, Labor, and Pensions (Senate) |
| Y 4.L 22 | Special Committee on the Survey of Land and Water Policies of the United States (Senate) |
| Y 4.L 41 | Select Committee to Study Law |
| Y 4.L 44/1 | Special Joint Committee on Revision of Laws |
| Y 4.L 44/2 | Committee on Revision of Laws (House) |
| Y 4.L 52 | Joint Committee on the Legislative Budget |
| Y 4.L 61/1 | Committee on the Library (House) |
| Y 4.L 61/2 | Joint Committee on the Library of Congress |
| Y 4.L 61/3 | Committee on the Library (Senate) |
| Y 4.L 62 | Select Committee on the Investigation of Charges Made by George L. Lilley (House) |
| Y 4.L 78 | Select Committee on Lobby Investigation |
| Y 4.L 78/2 | Special Committee to Investigate Lobbying Activities |
| Y 4.L 78/3 | Select Committee on Lobbying Activities (House) |
| Y 4.L 89 | Committee to Investigate the Election of William Lorimer (Senate) |
