- National Capital Housing Authority9
- National Capital Regional Planning Council9
- National Climatic Center9
- National Commission on Libraries and Information Science9
- National Guard Bureau (Air Force)9
- National Labor Relations Board, Special Committee to Investigate, House9
- National Museum, Smithsonian Institution9
- Naval Education and Training Command9
- Naval Medical School, Bethesda9
- Naval Personnel Bureau (Navy)9
- Nicaragua Maritime Canal Company9
- Nutrition and Human Needs, Select Committee on, Senate9
- Oceanographer of Navy, Office of9
- Operation and Maintenance Department9
- Patent Office, Commerce Dept.9
- Periodicals Division9
- Permanent Conference on Printing9
- Population Growth and the American Future, Commission on9
- Post-War Military Policy, Select Committee on, House9
- Postal Savings Division9