| Shenandoah National Park Acts |
| Sheppard Air Corps Cadet Act |
| Sheppard Army Reserve Act |
| Sheppard Bone-Dry Law in District of Columbia |
| Sheppard-Towner Act (Maternity Hygiene) |
| Sherley Amendment (Food and Drugs) |
| Sherman Act (Antitrust) |
| Sherman Act (Purchase of Silver) |
| Sherman Silver Act of 1890 (Repeal) |
| Sherwood Act (Mexican, Civil War Pensions) |
| Ship Load Line Act |
| Ship Mortgage Act, 1920 |
| Ship Seizure Bill |
| Ship Subsidies Act |
| Shipbuilding Act |
| Shipping |
| Shipping Acts |
| Shipping Act, 1916 |
| Shipping Act Amendments of 1979 |
| Shipping Act of 1984 |
| Shipping Commissioners Acts |
| Shipstead-Nolan Act |
| Shirley Temple Act (Child Labor) |
| Shoalwater Bay Indian Tribe - Dexter-by-the-Sea Claim Settlement Act |
| Shoreline Erosion Control Demonstration Act of 1974 |
| Shore Line Erosion Protection Act (Public Property) |
| Shore Protection Act of 1988 |
| Sick Leave Act |
| Signal Inspection Act (Railroads) |
| Sikes Act |
| Sikes Act Amendments of 1978 |
| Siletz Indian Tribe Restoration Act |
| Sills Act (Pensions, Spanish War, Philippine Insurrection, China Relief Expedition) |
| Silver Coin Issue Resolution |
| Silver Coin Proof Sets Act |
| Silver Purchase Acts |
| Silvio O. Conte National Fish and Wildlife Refuge Act |
| Single Audit Act of 1984 |
| Single-Employer Pension Plan Amendments Act of 1986 |
| Single Family Mortgage Foreclosure Act of 1994 |
| Sipsey Wild and Scenic River and Alabama Addition Act of 1988 |
| Sitka National Cemetery Transfer Act of 1983 |
| Sixteen Hour Law (Railroads) |
| Sixth Supplemental National Defense Appropriation Act, 1942 |
| Slave Trade Abolishment Act (District of Columbia) |
| Slave Trade Prohibition Act |
| Small Business Access to Surety Bonding Survey Act of 1992 |
| Small Business Act |
| Small Business Act Amendments of 1961 |
| Small Business Act Amendments of 1967 |
| Small Business Administration Reauthorization and Amendment Act of 1988 |
| Small Business Administration Reauthorization and Amendments Act of 1990 |
| Small Business Administration Reauthorization and Amendments Act of 1994 |
| Small Business Amendments of 1974 |
| Small Business and Federal Procurement Competition Enhancement Act of 1984 |
| Small Business Budget Reconciliation and Loan Consolidation/Improvement Act of 1981 |
| Small Business Competitiveness Demonstration Program Act of 1988 |
| Small Business Computer Security and Education Act of 1984 |
| Small Business Credit and Business Opportunity Enhancement Act of 1992 |
| Small Business Credit Crunch Relief Act of 1992 |
| Small Business Development Center Act of 1980 |
| Small Business Development Center Improvement Act of 1984 |
| Small Business Economic Policy Act of 1980 |
| Small Business Emergency Relief Act |
| Small Business Employee Ownership Act of 1980 |
| Small Business Energy Loan Act |
| Small Business Equity Enhancement Act of 1992 |
| Small Business Export Expansion Act of 1980 |
| Small Business Guaranteed Credit Enhancement Act of 1993 |
| Small Business Innovation Development Act of 1982 |
| Small Business Innovation Research Program Reauthorization Act of 1992 |
| Small Business International Trade and Competitiveness Act |
| Small Business Investment Act of 1958 |
| Small Business Investment Act Amendments of 1960 |
| Small Business Investment Act Amendments of 1961 |
| Small Business Investment Act Amendments of 1963 |
| Small Business Investment Act Amendments of 1966 |
| Small Business Investment Act Amendments of 1967 |
| Small Business Investment Act Amendments of 1972 |
| Small Business Investment Incentive Act of 1980 |
| Small Business Issuers' Simplification Act of 1980 |
| Small Business Lending Enhancement Act of 1995 |
| Small Business Loan Securitization and Secondary Market Enhancement Act of 1994 |
| Small Business Mobilization Law |
| Small Business Prepayment Penalty Relief Act of 1994 |
| Small Business Protection Act of 1967 |
| Small Business Research and Development Enhancement Act of 1992 |
| Small Business Secondary Market Improvements Act of 1984 |
| Small Business Tax Revision Act of 1958 |
| Small Business Technology Transfer Act of 1992 |
| Small Reclamation Projects Act of 1956 |
| Small Tract Act of 1938 |
| Small Tract Act of 1983 |
| Smaller War Plants Corporation |
| Smith Act (Reclamation and Irrigation) |
| Smith Act of 1940 |
| Smith-Connally Anti-Strike Act |
| Smith-Hughes Vocational Education Act |
| Smith-Lever Act (Agriculture Extension Work) |
| Smith River National Recreation Area Act |
| Smith-Sears Act (Vocational Rehabilitation) |
| Smithsonian Institution Sesquicentennial Commemorative Coin Act of 1995 |
| Smoot-Burton Act (British War Debt) |
| Smoot-Hawley Act |
| Snyder Act (Indian Affairs Bureau) |
| Social Security Act |
| Social Security Act Amendments of 1939 |
| Social Security Act Amendments of 1946 |
| Social Security Act Amendments of 1947 |
| Social Security Act Amendments of 1950 |
| Social Security Act Amendments of 1952 |
| Social Security Amendments of 1954 |
| Social Security Amendments of 1956 |
| Social Security Amendments of 1958 |
| Social Security Amendments of 1960 |
| Social Security Amendments of 1961 |
| Social Security Amendments of 1965 |
| Social Security Amendments of 1967 |
| Social Security Amendments of 1969 |
| Social Security Amendments of 1972 |
| Social Security Amendments of 1974 |
| Social Security Amendments of 1977 |
| Social Security Amendments of 1983 |
| Social Security Amendments of 1994 |
| Social Security Disability Amendments of 1980 |
| Social Security Disability Benefits Reform Act of 1984 |
| Social Security Domestic Employment Reform Act of 1994 |
| Social Security Independence and Program Improvements Act of 1994 |
| Social Services Amendments of 1974 |
| Social Services Block Grant Act |
| Sockeye Salmon or Pink Salmon Fishing Act of 1947 |
| Sodbuster Law |
| Soft Drink Interbrand Competition Act |
| Soil and Water Resources Conservation Act of 1977 |
| Soil Bank Act |
| Soil Conservation and Domestic Allotment Act |
| Soil Erosion Act |
| Solar Energy and Energy Conservation Act of 1980 |
| Solar Energy and Energy Conservation Bank Act |
| Solar Energy Research Development and Demonstration Act of 1974 |
| Solar Heating and Cooling Demonstration Act of 1974 |
| Solar Photovoltaic Energy Research, Development, and Demonstration Act of 1978 |
| Solar, Wind, Waste, and Geothermal Power Production Incentives Act of 1990 |
| Soldiers' and Sailors' Civil Relief Act of 1918 |
| Soldiers' and Sailors' Civil Relief Act of 1940 |
| Soldiers' and Sailors' Civil Relief Act Amendments of 1942 |
| Soldiers' and Sailors' Civil Relief Act Amendments of 1991 |
| Soldiers' and Sailors' Homestead Acts |
| Soldiers' Bonus Act |
| Soldiers' Families Freedom Resolution |
| Soldier's Vote Act |
| Solid Waste Disposal Act |
| Solid Waste Disposal Act Amendments of 1980 |
| South African Democratic Transition Support Act of 1993 |
| South Pacific Tuna Act of 1988 |
| South Platte River Compact |
| Southeast Interstate Low-Level Radioactive Waste Compact Amendments Consent Act of 1989 |
| Southern Arizona Water Rights Settlement Act of 1982 |
| Southern Arizona Water Rights Settlement Technical Amendments Act of 1992 |
| Southern California Indian Land Transfer Act |
| Southern Nevada Project Act |
| Southwestern Low-Level Radioactive Waste Disposal Compact Consent Act |
| Soviet-Eastern European Research and Training Act of 1983 |
| Soviet Nuclear Threat Reduction Act of 1991 |
| Soviet Scientists Immigration Act of 1992 |
| Soybean Promotion, Research, and Consumer Information Act |
| Space Basis Act (Carriage of Mail by Railroads) |
| Spanish-American Peace Treaty Proclamation |
| Spanish Colonization Commemorative Act of 1988 |
| Spanish War Claims Act |
| Spanish War Tax Act (Reduction) |
| Spark M. Matsunaga Hydrogen Research, Development, and Demonstration Act of 1990 |
| ''SPARS'' Act |
| Special Central American Assistance Act of 1979 |
| Special Drawing Rights Act |
| Special Energy Research and Development Appropriation Act, 1975 |
| Special Foreign Assistance Act of 1971 |
| Special Foreign Assistance Act of 1986 |
| Special Health Revenue Sharing Act of 1975 |
| Special International Security Assistance Act of 1979 |
| Special Laws Prohibition Act (Territories) |
| Special Projects Act |
| Specie Payment Resumption Act |
| Speedy Trial Act of 1974 |
| Speedy Trial Act Amendments Act of 1979 |
| Spence Act (Savings and Loan Holding Companies) |
| Spending Reduction Act of 1984 |
| Spoils of War Act of 1994 |
| Sponge Act |
| Spooner Act (Isthmian Canal) |
| Spring Mountains National Recreation Area Act |
| Springer Act |
| Spruce Knob-Seneca Rocks National Recreation Area Act |
| Stabilization Act of 1942 |
| Stabilization Extension Act of 1944 |
| Stabilization Fund-Dollar Devaluation Act |
| Stagecoach Reservoir Project Act of 1994 |
| Staggers Rail Act of 1980 |
| Stamp Payments Act |
| Standard Barrel Act (Apple Barrels) |
| Standard Barrel Act (Fruits, Vegetables, etc.) |
| Standard Barrel Act (Lime Barrels) |
| Standard Baskets Act |
| Standard Reference Data Act |
| Standard Time Acts |
| Star Schools Act |
| Star Schools Program Assistance Act |
| State and Local Fiscal Assistance Act of 1972 |
| State and Local Fiscal Assistance Amendments of 1976 |
| State and Local Fiscal Assistance Act Amendments of 1980 |
| State and Local Government Cost Estimate Act of 1981 |
| State and Local Law Enforcement Assistance Act of 1986 |
| State Bank Aid Act |
| State Comprehensive Mental Health Services Plan Act of 1986 |
| State Constitutions Act (Virginia, Texas, Mississippi) |
| State Department Basic Authorities Act of 1956 |
| State Department/USIA Authorization Act, Fiscal Year 1975 |
| State Dependent Care Development Grants Act |
| State Energy Efficiency Programs Improvement Act of 1990 |
| State Forest Aid Act |
| State Justice Institute Act of 1984 |
| State Selection Acts (Public Lands) |
| State Taxation of Depositories Act |
| State Technical Services Act of 1965 |
| State Veterans' Home Assistance Improvement Act of 1977 |
| Statehood Acts (Arizona and New Mexico) |
| Statue of Liberty-Ellis Island Commemorative Coin Act |
| Statutes of Limitations Act |
| Steagall Commodity Credit Act |
| Steagall National Housing Act of 1938 |
| Steagall National Housing Act of 1939 |
| Steagall R. F. C. Relief Obligations Act |
| Steagall Stock Liability Act |
| Steagall-Wagner National Housing Act of 1938 |
| Steamboat Inspection Act |
| Steamtown National Historic Site Act of 1986 |
| Steel and Aluminum Energy Conservation and Technology Competitiveness Act of 1988 |
| Steel Import Stabilization Act |
| Steel Industry Compliance Extension Act of 1981 |
| Steel Trade Liberalization Program Implementation Act |
| Sterling Act (Civil Service Retirement) |
| Sterling Act (Employers' Liability) |
| Sterling-Lehlbach Act (Classification, Federal Employees) |
| Stevenson-Wydler Technology Innovation Act of 1980 |
| Stewart B. McKinney Homeless Assistance Act |
| Stewart B. McKinney Homeless Assistance Amendments Act of 1988 |
| Stewart B. McKinney Homeless Assistance Amendments Act of 1990 |
| Stewart B. McKinney Homeless Housing Assistance Amendments Act of 1992 |
| Stewart B. McKinney National Wildlife Refuge Designation Act of 1987 |
| Stobb Act (National Prohibition) |
| Stock-Raising Homestead Act |
| Stock Reservoir Act |
| Stockholders' Liability Act |
| Stone Act |
| Strategic and Critical Materials Stock Piling Act |
| Strategic and Critical Materials Stock Piling Revision Act of 1979 |
| Strategic and Critical Materials Transaction Authorization Act of 1979 |
| Strategic and Critical Minerals Act of 1990 |
| Strategic Material Loan Act |
| Strategic Petroleum Reserve Amendments Act of 1981 |
| Strategic War Materials Act |
| Streambank Erosion Control Evaluation and Demonstration Act of 1974 |
| Street Railway Merger Act (District of Columbia) |
| Strikebreaker Act |
| Striped Bass Act of 1991 |
| Student Financial Assistance Technical Amendments Act of 1982 |
| Student Financial Assistance Amendments of 1985 |
| Student Financial Assistance Technical Corrections Act of 1986 |
| Student Loan Consolidation and Technical Amendments Act of 1983 |
| Student Loan Default Prevention Initiative Act of 1990 |
| Student Loan Reconciliation Amendments of 1989 |
| Student Loan Reform Act of 1993 |
| Student Right-To-Know Act |
| Student Right-To-Know and Campus Security Act |
| Subchapter S Revision Act of 1982 |
| Subcontractors' Gratuities and Kick-Backs Act (Public Contracts) |
| Submarine Cable Act |
| Submerged Lands Act |
| Subsistence Expense Act of 1926 |
| Subversive Activities Control Act of 1950 |
| Subversive Activities Control Board Tenure Act |
| Sudbury, Assabet, and Concord Wild and Scenic River Study Act |
| Sudden Infant Death Syndrome Act of 1974 |
| Sudden Infant Death Syndrome Amendments of 1979 |
| Suffrage Amendment |