| National Gallery of Art Act |
| National Geography Studies Centers Act |
| National Geologic Mapping Act of 1992 |
| National Gold and Silver Stamping Act of 1906 |
| National Guard |
| National Guard Act of 1933 |
| National Guard Mobilization Act of 1940 |
| National Guard Officers' Act |
| National Guard Technicians Act of 1968 |
| National Health Planning and Resources Development Act of 1974 |
| National Health Service Corps Revitalization Amendments of 1990 |
| National Health Survey Act |
| National Heart Act |
| National Heart, Blood Vessel, Lung and Blood Act of 1972 |
| National Highway System Designation Act of 1995 |
| National Highway Traffic Safety Administration Authorization Act of 1991 |
| National Historic Preservation Act |
| National Historic Preservation Act Amendments of 1980 |
| National Historic Preservation Act Amendments of 1992 |
| National Historical Publications and Records Commission Amendments of 1988 |
| National Homeownership Trust Act |
| National Housing Act |
| National Housing Census Act |
| National Independent Colleges and Universities Discovery Act |
| National Indian Forest Resources Management Act |
| National Industrial Recovery Act |
| National Industrial Recovery Extension Act |
| National Industrial Reserve Act of 1948 |
| National Insurance Development Act of 1975 |
| National Irrigation Act |
| National Institute of Standards and Technology Act |
| National Institute of Standards and Technology Authorization Act for Fiscal Year 1989 |
| National Institute on Deafness and Other Communication Disorders and Health Research Extension Act of 1988 |
| National Institutes of Health Amendments of 1990 |
| National Institutes of Health Revitalization Act of 1993 |
| National Labor Relations Act |
| National Labor Relations Board Appropriation Acts |
| National Law Enforcement Cooperation Act of 1990 |
| National Library of Medicine Act |
| National Literacy Act of 1991 |
| National Loan Acts (Civil War) |
| National Manufactured Housing Construction and Safety Standards Act of 1974 |
| National Marine Sanctuaries Act |
| National Marine Sanctuaries Program Amendments Act of 1992 |
| National Maritime Heritage Act of 1994 |
| National Mass Transportation Assistance Act of 1974 |
| National Materials and Minerals Policy, Research and Development Act of 1980 |
| National Materials Policy Act of 1970 |
| National Mediation Board Appropriation Acts |
| National Mimbres Culture Study Act of 1988 |
| National Mental Health Act |
| National Military Establishment Appropriation Act of 1950 |
| National Military Establishment Lands Act of 1950 |
| National Mobile Home Construction and Safety Standards Act of 1974 |
| National Monument Act (Preservation of Antiquities) |
| National Motor Vehicle Theft Act |
| National Museum Act of 1966 |
| National Museum of the American Indian Act |
| National Narcotics Act of 1984 |
| National Narcotics Leadership Act of 1988 |
| National Neighborhood Policy Act |
| National Nutrition Monitoring and Related Research Act of 1990 |
| National Ocean Pollution Planning Act of 1978 |
| National Ocean Pollution Research and Development and Monitoring Planning Act of 1978 |
| National Oceanic and Atmospheric Administration Authorization Act of 1992 |
| National Oceanic and Atmospheric Administration Marine Fisheries Program Authorization Act |
| National Oceanic and Atmospheric Administration Ocean and Coastal Programs Authorization Act of 1989 |
| National Organ Transplant Act |
| National Park Foundation Act |
| National Park Police Drug Enforcement Supplemental Authority Act |
| National Park Service Organic Act |
| National Park System Concessions Policy Act |
| National Park System General Authorities Act |
| National Park System Visitor Facilities Fund Act |
| National Parks and Recreation Act of 1978 |
| National Portrait Gallery Act |
| National Productivity and Quality of Working Life Act of 1975 |
| National Prohibition Acts |
| National Reclamation Law |
| National Research Act |
| National Research Service Award Act of 1974 |
| National School Lunch Act |
| National School Lunch Act and Child Nutrition Amendments of 1977 |
| National School Lunch and Child Nutrition Act Amendments of 1973 |
| National School Lunch and Child Nutrition Act Amendments of 1974 |
| National School Lunch Act and Child Nutrition Act of 1966 Amendments of 1975 |
| National Science and Technology Policy, Organization, and Priorities Act of 1976 |
| National Science, Engineering, and Mathematics Authorization Act of 1986 |
| National Science Foundation Act of 1950 |
| National Science Foundation Authorization Act, 1970 |
| National Science Foundation Authorization Act of 1971 |
| National Science Foundation Authorization Act of 1972 |
| National Science Foundation Authorization Act of 1973 |
| National Science Foundation Authorization Act, 1974 |
| National Science Foundation Authorization Act, 1975 |
| National Science Foundation Authorization Act, 1976 |
| National Science Foundation Authorization Act, 1977 |
| National Science Foundation Authorization Act, Fiscal Year 1978 |
| National Science Foundation Authorization Act for Fiscal Year 1979 |
| National Science Foundation Authorization Act for Fiscal Year 1980 |
| National Science Foundation Authorization Act for Fiscal Year 1986 |
| National Science Foundation Authorization Act for Fiscal Year 1987 |
| National Science Foundation Authorization Act of 1988 |
| National Science Foundation Authorization and Science and Engineering Equal Opportunities Act |
| National Science Foundation University Infrastructure Act of 1988 |
| National Sea Grant College and Program Act of 1966 |
| National Sea Grant College Program Act |
| National Sea Grant College Program Authorization Act of 1987 |
| National Sea Grant College Program Authorization Act of 1991 |
| National Security Act of 1947 |
| National Security Act Amendments of 1949 |
| National Security Agency Act of 1959 |
| National Security Education Act of 1991 |
| National Service Life Insurance Act of 1940 |
| National Shipbuilding and Shipyard Conversion Act of 1993 |
| National Sickle Cell Anemia Control Act |
| National Sickle Cell Anemia, Cooley's Anemia, Tay-Sachs, and Genetic Diseases Act |
| National Skill Standards Act of 1994 |
| National Soldiers' Home Acts |
| National Space Council Authorization Act of 1990 |
| National Space Grant College and Fellowship Act |
| National Stolen Property Act |
| National Summit Conference on Education Act of 1984 |
| National Superconductivity and Competitiveness Act of 1988 |
| National Swine Flu Immunization Program of 1976 |
| National Teacher Training Project Act of 1994 |
| National Technical Information Act of 1988 |
| National Technical Institute for the Deaf Act |
| National Telecommunications and Information Administration Organization Act |
| National Tourism Policy Act |
| National Traffic and Motor Vehicle Safety Act of 1966 |
| National Traffic and Motor Vehicle Safety Act Amendments of 1972 |
| National Trails System Act |
| National Trails System Act Amendments of 1983 |
| National Trails System Improvements Act of 1988 |
| National Transportation Policy |
| National Urban Policy and New Community Development Act of 1970 |
| National Venereal Disease Prevention and Control Act |
| National Visitor Center Emergency Repair Act of 1980 |
| National Visitor Center Facilities Act of 1968 |
| National Vocational Student Loan Insurance Act of 1965 |
| National Voter Registration Act of 1993 |
| National War Agencies Appropriation Acts |
| National Water Commission Act |
| National Weather Modification Policy Act of 1976 |
| National Wildlife Refuge System Administration Act of 1966 |
| National Wildlife Refuge System Administration Act Amendments of 1974 |
| National Wool Act of 1954 |
| National Youth Administration Appropriation Acts |
| Nationality Act of 1940 |
| Nation's Capital Religious Liberty and Academic Freedom Act |
| Native American Graves Protection and Repatriation Act |
| Native American Languages Act |
| Native American Languages Act of 1992 |
| Native American Programs Act of 1974 |
| Native American Programs Act Amendments of 1984 |
| Native American Programs Act Amendments of 1987 |
| Native American Programs Act Amendments of 1992 |
| Native American Veterans' Memorial Establishment Act of 1994 |
| Native Americans Educational Assistance Act |
| Native Hawaiian Education Act |
| Native Hawaiian Health Care Act of 1988 |
| Native Hawaiian Health Care Improvement Act |
| Native Latex Commercialization and Economic Development Act of 1978 |
| Native Townsite Act of 1926 |
| NATO Participation Act of 1994 |
| Natural Gas Act |
| Natural Gas Pipeline Safety Act of 1968 |
| Natural Gas Pipeline Safety Act Amendments of 1974 |
| Natural Gas Pipeline Safety Act Amendments of 1976 |
| Natural Gas Policy Act of 1978 |
| Natural Gas Wellhead Decontrol Act of 1989 |
| Naturalization Acts |
| Nautical Education Act |
| Navajo Community College Act |
| Navajo Community College Assistance Act of 1978 |
| Navajo-Hopi Land Settlement Act of 1974 |
| Navajo-Hopi Rehabilitation Act |
| Navajo-Hopi Relocation Housing Program Reauthorization Act of 1991 |
| Navajo and Hopi Indian Relocation Amendments Act of 1980 |
| Navajo and Hopi Indian Relocation Amendments of 1988 |
| Naval Academy Act |
| Naval Academy Age Limit Act |
| Naval Air Base Act |
| Naval Air Station Act |
| Naval Aircraft-Public Works Act |
| Naval Appropriation Acts |
| Naval Auxiliary Vessel Acts |
| Naval Aviation Cadet Act |
| Naval Aviation Cadet Act of 1942 |
| Naval Aviation Personnel Act of 1940 |
| Naval Aviation Reserve Act of 1939 |
| Naval Drydock Act |
| Naval Expansion Acts |
| Naval Facilities Act |
| Naval Line-Officer Act |
| Naval Militia Act |
| Naval Parity Act |
| Naval Petroleum Reserves Production Act of 1976 |
| Naval Plant-Protection Force Act |
| Naval Public Works Act |
| Naval Reserve Act of 1938 |
| Naval R.O.T.C. Act |
| Naval Service Appropriations Act, 1922 |
| Naval Ship Alteration Act |
| Naval Special Duty Act |
| Naval Staff Corps Act |
| Naval Stores Act |
| Navigation Acts |
| Navy and Marine Corps Officer Augmentation Act of 1955 |
| Navy Construction Act |
| Navy Department Reorganization Act |
| Navy Enlisted Strength Act |
| Navy Enlistment Acts |
| Navy Local Defense Ship Act |
| Navy-Marine Advancement Act |
| Navy-Marine Corps Enlisted Strength Act |
| Navy Ordnance Act |
| Navy Personnel Act |
| Navy Promotion Act |
| Navy Public Works Acts |
| Navy Reorganization Acts |
| Navy Shipbuilding and Repair Act |
| Navy Shipbuilding Facilities Act |
| Navy Shipbuilding Program Act |
| Navy Warship Construction Act |
| Navy-Yard Tracks Act |
| Nebraska-Kansas Act |
| Nebraska Wilderness Act of 1985 |
| Negotiated Rates Act of 1993 |
| Negotiated Rulemaking Act of 1990 |
| Negotiated Shipbuilding Contracting Act of 1976 |
| Neighborhood Reinvestment Corporation Act |
| Neighborhood Self-Help Development Act of 1978 |
| Nelson Act (Alaska Roads, Schools, and Insane) |
| Nelson Act (Bankruptcy Act of 1898) |
| Nelson Act (Chippewa Indians of Minnesota) |
| Nelson Act (Criminal Appeals) |
| Nelson Act (Department of Commerce and Labor) |
| Nelson Amendment (Agricultural Colleges) |
| Nelson Bill |
| Nematocide, Plant Regulator, Defoliant, and Desiccant Amendment of 1959 |
| Net Worth Certificate Act |
| Neutrality Acts |
| Neutrality Proclamations |
| Nevada-Florida Land Exchange Authorization Act of 1988 |
| Nevada Wilderness Protection Act of 1989 |
| New Communities Act of 1968 |
| New England Fishery Resources Restoration Act of 1990 |
| New GI Bill Continuation Act |
| New Hampshire Forest Management Initiatives Act of 1988 |
| New Hampshire Wilderness Act of 1984 |
| New Orleans Jazz National Historical Park Act of 1994 |
| New York City Loan Guarantee Act of 1978 |
| New York City Seasonal Financing Act of 1975 |
| Newlands Act (Irrigation) |
| Newlands Act (Railroad Mediation) |
| Newlands Resolution (Annexation of Hawaii) |
| Newspaper Preservation Act |
| Newton Amendment to the Carmack Amendment |
| Nez Perce National Historical Park Act |
| Nez Perce National Historical Park Additions Act of 1991 |
| Niagara Power Project Act |
| Nine Hour Law (Railroads) |
| Nineteenth Amendment |
| 1950 Amendment to Public Law 88 |
| 1951 Amendments to the Universal Military Training and Service Act |
| 1955 Amendments to the Universal Military Training and Service Act |
| 1959 Amendment to the Texas City Disaster Relief Act |
| 1964 Amendments to the Alaska Omnibus Act |
| 1979 White House Conference on the Arts Act |
| 1979 White House Conference on the Humanities Act |
| 1984 Act to Combat International Terrorism |
| 1988 Olympic Commemorative Coin Act |
| 1992 National Assessment of Chapter 1 Act |
| 1992 Olympic Commemorative Coin Act |
| 1992 White House Commemorative Coin Act |
| 1993 White House Conference on Children, Youth, and Families |
| Niobrara Scenic River Designation Act of 1991 |
| NOAA Fleet Modernization Act |
| No Net Cost Tobacco Program Act of 1982 |
| Noise Control Act of 1972 |
| Noise Pollution and Abatement Act of 1970 |
| Noise Reduction Reimbursement Act of 1989 |