| Y 3.R 11 | Interagency Racial Data Committee (1970) |
| Y 3.R 11/2 | United States Radiation Policy Council (1980-1982) |
| Y 3.R 13 | Railroad Securities Commission (1910-1911) |
| Y 3.R 13/2 | Railroad Administration (1918-1939) |
| Y 3.R 13/3 | Commission on Railroad Retirement (1970-1972) |
| Y 3.R 13/4 | United States Railway Association (1974-1987) |
| Y 3.R 24 | Reconstruction Finance Corporation (1932-1939, 1947-1954) |
| Y 3.R 24/2 | National Study Commission on Records and Documents of Federal Officials (1974-1976) |
| Y 3.R 26 | Regulatory Council |
| Y 3.R 26/2 | Interagency Regulatory Liaison Group (1977-1981) |
| Y 3.R 27 | U.S. Commission on International Religious Freedom (1998- ) |
| Y 3.R 29 | Rent Commission of District of Columbia (1919-1925) |
| Y 3.R 29/2 | Commission on Renovation of the Executive Mansion (1949-1952) |
| Y 3.R 31 | Resettlement Administration (1935-1937) |
| Y 3.R 31/2 | Resolution Trust Corporation (1989-1995) |
| Y 3.R 32 | Revision of Statutes Commission (1872-1873) |
| Y 3.R 67 | Franklin Delano Roosevelt Memorial Commission (1955-1997) |
| Y 3.R 82 | Rubber Producing Facilities Disposal Commission (1953-1956) |
| Y 3.R 88 | Rural Electrification Administration (1935-1939) |
| Y 3.R 88/2 | Rural Development Program Committee (1954-1963) |
| Y 3.R 88/3 | Committee on Rural Development (1963-1966) |
