Background and Purpose
The Nixon Administration issued 264 National Security Decision Memoranda between 1969 and 1974. These documents are formal statements that announce presidential decisions, establish policy, and inform other departments and agencies of the decisions and their related responsibilities.
Some NSDMs directly respond to policy studies commissioned through the National Security Study Memoranda (NSSM). Others address new foreign policy and national security concerns, authorize certain actions, or provide instructions for U.S. delegates to conferences and negotiations. The wide range of topics covered by the NSDMs include foreign relations, defense, intelligence, international economic policy, weaponry, and budgets.
Most documents are one to three pages long. Attachments have also been scanned if they relate directly to the content of the memo and are needed to understand the memo. NSDMs are arranged in numerical order, which roughly corresponds to the date issued.
Locating the original records
Unless otherwise noted below, all NSDMs were scanned from the original documents housed in the National Security Council Institutional Files, Box H-208. If an original memo did not appear in this box, the Nixon staff searched the other NSC files to find the most complete version available. Memos that are only partially declassified were scanned from reference copies provided by the NSC.
Asterisk key:
(None)= declassified and released in full
*(1 asterisk)= declassified and released in part
**(2 asterisks)= fully classified
To locate Institutional Files containing reports, memoranda, and correspondence related to an NSDM, note the number of the NSDM, then search for that number in the National Security Council Institutional Files. CTRL+F to assist your search.
For example, documents pertaining to NSDM 1 are located in boxes H-208 and H-284.
| Number | Subject | Date |
| NSDM 1 | Establishment of NSC Decision and Study Memoranda Series | January 20, 1969 |
| NSDM 2 | Reorganization of the National Security Council System | January 20, 1969 |
| NSDM 3 | The Direction, Coordination and Supervision of Interdepartmental Activities Overseas | January 20, 1969 |
| NSDM 4 | Program Analyses Studies | September 4, 1969 |
| NSDM 5 | Disposition of National Security Action Memoranda | February 3, 1969 |
| NSDM 6 | Presidential Decision to Ratify Non-Proliferation Treaty | February 5, 1969 |
| NSDM 7 | The Direction, Coordination and Supervision of Interdepartmental Activities Overseas -- the Interdepartmental Groups | February 7, 1969 |
| NSDM 8 | Crisis Anticipation and Management | March 21, 1969 |
| NSDM 9 | Vietnam | April 1, 1969 |
| NSDM 10 | AID and PL 480 Commitments | April 11, 1969 |
| NSDM 11 | Peru | April 11, 1969 |
| NSDM 12 | NATO | April 14, 1969 |
| NSDM 13 | Policy Toward Japan | May 28, 1969 |
| NSDM 14 | Policy Toward Post-De Gaulle France | May 29, 1969 |
| NSDM 15 | East-West Trade | May 28, 1969 |
| NSDM 16 | Criteria for Strategic Sufficiency | June 24, 1969 |
| NSDM 17 | Relaxation of Economic Controls Against China | June 26, 1969 |
| NSDM 18 | Review of Underground Nuclear Tests | June 27, 1969 |
| NSDM 19 | Washington Special Actions Group | July 3, 1969 |
| NSDM 20 | U.S. Foreign Internal Defense Policy | July 10, 1969 |
| NSDM 21 | Peru | July 22, 1969 |
| NSDM 22 | Interdepartmental Organization for Panamanian Affairs | August 27, 1969 |
| NSDM 23 | Vietnam Special Studies Group | September 16, 1969 |
| NSDM 24 | Vietnam | September 17, 1969 |
| NSDM 25 | Disposition of Outdated NSC Policy Papers | September 17, 1969 |
| NSDM 26 | Defense Program Review Committee | October 11, 1969 |
| NSDM 27 | U.S. Military Posture | October 11, 1969 |
| NSDM 28 | Untying of Aid | October 20, 1969 |
| NSDM 29 | Tariff Preferences for Developing Countries | October 31, 1969 |
| NSDM 30 | US Position for Special Meetings of the Inter-American Economic and Social Council | November 5, 1969 |
| NSDM 31 | Rockefeller Recommendations on Debt Service | November 5, 1969 |
| NSDM 32 | Water Development and Middle East Policy | November 6, 1969 |
| NSDM 33 | Preliminiary Strategic Arms Limitation Talks | November 12, 1969 |
| NSDM 34 | US Policy Toward Greece -- Military Assistance | November 14, 1969 |
| NSDM 35 | United States Policy on Chemical Warfare Program and Bacteriological/Biological Research Program | November 25, 1969 |
| NSDM 36 | Holiday Truces, Cease-fire and Troop Withdrawls | December 3, 1969 |
| NSDM 37 | U.S. Position for the Special Meetings of the Inter-American Economic and Social Council | January 27, 1970 |
| NSDM 38 | United States Policy Toward Southern Africa | January 28, 1970 |
| NSDM 39 | U.S. Position for the Special Meetings of the Inter-American Economic and Social Council | January 29, 1970 |
| NSDM 40* | Responsibility for the Conduct, Supervision, and Coordination of Covert Action Operations | February 17, 1970 |
| NSDM 41 | Debt Service | February 18, 1970 |
| NSDM 42 | Jet Aircraft for Argentina | February 19, 1970 |
| NSDM 43 | US Policy Toward Spain: Base Negotiations | February 20, 1970 |
| NSDM 44 | United States Policy on Toxins | February 20, 1970 |
| NSDM 45 | U.S. Policy Toward Spain: Proposed Spanish Trade Agreement with the European Community | March 2, 1970 |
| NSDM 46 | Jet Aircraft for Latin America | March 5, 1970 |
| NSDM 47 | U.S. Policy Toward Rhodesia | March 9, 1970 |
| NSDM 48 | U.S. Programs in Korea | March 20, 1970 |
| NSDM 49 | Preparation of Detailed SALT Options | March 27, 1970 |
| NSDM 50 | Release of Public Information Concerning Foreign Nuclear Tests | April 6, 1970 |
| NSDM 51 | Vienna Strategic Arms Limitation Talks | April 10, 1970 |
| NSDM 52 | Quarterly Report on the State of the War and Vietnamization | April 10, 1970 |
| NSDM 53 | Draft Reform and the Elimination of Draft Calls | April 14, 1970 |
| NSDM 54 | Inter-American Development Bank Replenishment | April 16, 1970 |
| NSDM 55 | South West Africa | May 22, 1970 |
| NSDM 56 | Actions in Support of the Cambodian Government | April 22, 1970 |
| NSDM 57 | Actions to Protect U.S. Forces in South Vietnam | April 26, 1970 |
| NSDM 58 | Actions to Protect U.S. Forces in South Vietnam | April 28, 1970 |
| NSDM 59* | FY 1971-72 Nuclear Weapons Stockpile | May 9, 1970 |
| NSDM 60** | Nuclear Weapons Deployment Authorization for FY 1971 | May 9, 1970 |
| NSDM 61 | Jordan Arms Package | May 19, 1970 |
| NSDM 62 | Convention on Continental Shelf and Seabeds | May 22, 1970 |
| NSDM 63 | Psychological Warfare Operations Against the Vietnamese Communists | June 2, 1970 |
| NSDM 64 | Panama Canal | June 5, 1970 |
| NSDM 65 | Tariff Preferences for Developing Countries | June 12, 1970 |
| NSDM 66 | Next Steps in the Middle East | June 18, 1970 |
| NSDM 67 | Military Supply Policy Toward Greece | June 25, 1970 |
| NSDM 68 | U.S. Policy Toward the European Community | July 3, 1970 |
| NSDM 69 | Strategic Arms Limitation Talks | July 9, 1970 |
| NSDM 70 | International Space Cooperation: US-USSR Activities | July 10, 1970 |
| NSDM 71 | United States Antarctic Policy and Program | July 10, 1970 |
| NSDM 72 | Exchange of Technical Data Between the United States and the International Space Community | July 17, 1970 |
| NSDM 73 | Supplemental Guidance for Strategic Arms Limitation Talks | July 22, 1970 |
| NSDM 74 | Detailed Statement of the Provisions of U.S. SALT Position | July 31, 1970 |
| NSDM 75 | Rhodesia Sanctions | August 7, 1970 |
| NSDM 76 | The New U.S. Foreign Assistance Programs | August 10, 1970 |
| NSDM 77 | Air Activity in Southeast Asia over FY 71 | August 12, 1970 |
| NSDM 78 | Authorization for Use of Riot Control Agents and Chemical Herbicides in War | August 11, 1970 |
| NSDM 79 | Establishment of Special Review Group for Southeast Asia | August 13, 1970 |
| NSDM 80 | Vietnam Economic Policy | August 13, 1970 |
| NSDM 81 | Implementation of Arms Embargo on South Africa and Portugese African Territories | August 17, 1970 |
| NSDM 82 | Revision of the U.S. Port Security Program | September 1, 1970 |
| NSDM 83 | IA-ECOSOC - United States Position for the Fall Meetings of the Special Committee for Consultation and Negotiation | September 7, 1970 |
| NSDM 84 | Defense Program FY 72-76 | September 11, 1970 |
| NSDM 85 | The National Security Council Senior Review Group | September 14, 1970 |
| NSDM 86 | Tariff Preferences for Developing Countries | October 14, 1970 |
| NSDM 87 | Military and Financial Assistance to Israel | October 15, 1970 |
| NSDM 88 | US Force Levels in Europe and "Burden-sharing" | October 15, 1970 |
| NSDM 89 | Cambodia Strategy | October 26, 1970 |
| NSDM 90 | Instructions for Strategic Arms Limitation and Talks at Helsinki (SALT III) | November 2, 1970 |
| NSDM 91 | United States Policy on Germany and Berlin | November 6, 1970 |
| NSDM 92 | U.S. Policy Toward the Persian Gulf | November 7, 1970 |
| NSDM 93 | Policy Towards Chile | November 9, 1970 |
| NSDM 94 | U.S. Policy Toward Haiti | November 13, 1970 |
| NSDM 95 | U.S. Strategy and Forces for NATO | November 25, 1970 |
| NSDM 96 | Nuclear Weapons Safety Rules | December 14, 1970 |
| NSDM 97 | Safeguard Review | February 8, 1971 |
| NSDM 98 | Coordination of Foreign Affairs Research Sponsored by the Federal Government | February 9, 1971 |
| NSDM 99 | East-west Trade | March 1, 1971 |
| NSDM 100 | Military Equipment Package for Jordan | March 1, 1971 |
| NSDM 101 | FY 1971 Economic Assistance Program for India | March 2, 1971 |
| NSDM 102 | Instructions for Strategic Arms Limitations Talks at Vienna (SALT IV) | March 11, 1971 |
| NSDM 103 | Military Cooperation with France | March 29, 1971 |
| NSDM 104 | Cooperation with France on Nuclear Safety | March 29, 1971 |
| NSDM 105 | Steps Toward Augmentation of Travel and Trade Between the People's Republic of China and the United States | April 13, 1971 |
| NSDM 106 | The Berlin Negotiations | April 22, 1971 |
| NSDM 107 | Indonesian Military Assistance | May 5, 1971 |
| NSDM 108 | Guidance on Mutual and Balanced Force Reductions | May 21, 1971 |
| NSDM 109 | Pan American Highway and the Darien Gap | May 25, 1971 |
| NSDM 110 | US-Soviet Incidents at Sea | May 26, 1971 |
| NSDM 111 | Brazilian Territorial Sea Claims and Related Fisheries Problems | May 29, 1971 |
| NSDM 112 | Country Programming | August 24, 1971 |
| NSDM 113 | Republic of Korea Forces in South Vietnam | June 23, 1971 |
| NSDM 114 | Bolivia | June 23, 1971 |
| NSDM 115 | Panama Canal Treaty Negotiations | June 24, 1971 |
| NSDM 116 | The U.S. Policy on Mutual Force Reductions in Europe (MBFR) | June 28, 1971 |
| NSDM 117 | Instructions for Strategic Arms Limitation Talks at Helsinki (SALT V) | July 2, 1971 |
| NSDM 118 | Improvements in South Vietnamese Forces | July 3, 1971 |
| NSDM 119 | Disclosure of Classified United States Military Information to Foreign Governments and International Organizations | July 20, 1971 |
| NSDM 120 | Further Instructions for the Strategic Arms Limitations Talks at Helsinki (SALT V) | July 20, 1971 |
| NSDM 121* | Nuclear Weapons Deployment Authorization for FY 1972 | July 21, 1971 |
| NSDM 122 | U.S. Oceans Policy | July 22, 1971 |
| NSDM 123 | Participation by the Secretary of the Treasury and the Attorney General in Meetings of the National Security Council | July 27, 1971 |
| NSDM 124* | US-UK Nuclear Relations | July 29, 1971 |
| NSDM 125 | The Berlin Negotiations: The Issue of a Soviet Consulate General | August 11, 1971 |
| NSDM 126 | Additional Assistance to Thailand | August 11, 1971 |
| NSDM 127 | Further Instructions for the Strategic Arms Limitation Talks at Helsinki (SALT V) | August 12, 1971 |
| NSDM 128* | FY 1972-1974 Nuclear Weapons Stockpile | August 16, 1971 |
| NSDM 129 | ROK Force Structure and Modernization Program | September 2, 1971 |
| NSDM 130 | U.S.-Japan Joint Economic Committee Meeting | September 7, 1971 |
| NSDM 131 | Panama Canal Treaty Negotiations | September 13, 1971 |
| NSDM 132 | Modification of SSBN Commitments to NATO | September 13, 1971 |
| NSDM 133 | U.S. Strategy and Forces for NATO; Allied Force Improvements | September 22, 1971 |
| NSDM 134 | Policy Guidance on Mutual and Balanced Force Reductions | October 2, 1971 |
| NSDM 135 | FY 1972 Underground Nuclear Test Program (GROMMET) | October 6, 1971 |
| NSDM 136 | Policy in Cases of Expropriation | October 8, 1971 |
| NSDM 137 | Policy Toward Iceland | October 13, 1971 |
| NSDM 138 | Policy Toward Malta | October 13, 1971 |
| NSDM 139 | Fishing Negotiations with Chile, Ecuador and Peru | November 5, 1971 |
| NSDM 140 | Instructions for the Strategic Arms Limitation Talks at Vienna (SALT VI) | November 15, 1971 |
| NSDM 141 | Herbicides in Vietnam | November 26, 1971 |
| NSDM 142 | Presidential Guidance on Mutual and Balanced Force Reductions and a European Conference | December 2, 1971 |
| NSDM 143 | United States International Exchange Programs | December 17, 1971 |
| NSDM 144 | United States Arctic Policy and Arctic Policy Group | December 22, 1971 |
| NSDM 145 | Additional Instructions for the Strategic Arms Limitation Talks at Vienna (SALT VI) | January 3, 1972 |
| NSDM 146 | U.S.-Soviet Maritime Talks | January 3, 1972 |
| NSDM 147 | Fisheries Dispute with Ecuador, Peru and Chile | January 4, 1972 |
| NSDM 148 | Expropriation Policy in Multilateral Development Institutions | January 18, 1972 |
| NSDM 149 | Additional Authorities for Southeast Asia | February 4, 1972 |
| NSDM 150 | NSSM 140 -- US-Soviet Talks on Preventing Incidents at Sea | February 11, 1972 |
| NSDM 151 | Next Steps with Respect to U.S.-Soviet Trading Relationships | February 14, 1972 |
| NSDM 152 | Herbicides in Vietnam and NSDM 141 | February 14, 1972 |
| NSDM 153 | Review of US-USSR Negotiations | February 17, 1972 |
| NSDM 154 | Vietnam Economic Policy | February 17, 1972 |
| NSDM 155 | Relaxation of Restrictions on Trade with People's Republic of China | February 17, 1972 |
| NSDM 156 | Second Half FY 1972 Nuclear Test Program | March 8, 1972 |
| NSDM 157 | Preparatory Meeting for the Law of the Sea Conference | March 13, 1972 |
| NSDM 158 | Instructions for the Strategic Arms Limitation Talks at Helsinki (SALT VII) | March 23, 1972 |
| NSDM 159 | Integrated Circuit Technology Exports to Poland and Romania | March 29, 1972 |
| NSDM 160 | The Situation and Outlook in Bolivia | April 4, 1972 |
| NSDM 161 | Republic of Korea Forces in South Vietnam | April 5, 1972 |
| NSDM 162 | Presidential Guidance on Mutual and Balanced Force Reductions and a Conference on Cooperation and Security in Europe | April 5, 1972 |
| NSDM 163 | Statement of Policy Relative to U.S. Action in the Event of Unprovoked Communist Attack Against U.S. Aircraft or Vessels Outside of Communist Territory | April 6, 1972 |
| NSDM 164 | Additional Instruction for the Strategic Arms Limitation Talks at Helsinki (SALT VII) | May 1, 1972 |
| NSDM 165 | International Aspects of Weather Modification | May 2, 1972 |
| NSDM 166 | Instructions for Strategic Arms Limitations Talks at Helsinki (SALT VII): Amplification of NSDM 164 | May 12, 1972 |
| NSDM 167 | Additional Instructions for Strategic Arms Limitations Talks at Helsinki (SALT VII) | May 17, 1972 |
| NSDM 168 | Military Assistance to the RVN | May 19, 1972 |
| NSDM 169 | International Environmental Negotiations | May 29, 1972 |
| NSDM 170 | US-PRC Trade | June 8, 1972 |
| NSDM 171 | Russian Request for Samples of the Lassa Virus | June 15, 1972 |
| NSDM 172 | FY 73 DOD Budget Amendment | June 27, 1972 |
| NSDM 173 | Polish-US Economic Relations | July 7, 1972 |
| NSDM 174* | FY 73-75 Nuclear Weapons Stockpile | July 7, 1972 |
| NSDM 175 | Review of NSSM 139 -- U.S. Policy Governing Release of Components or Technology for Inclusion in Foreign Military Exports to Third Countries | July 10, 1972 |
| NSDM 176 | Bilateral Aid for Malta | July 14, 1972 |
| NSDM 177 | July-August Preparatory Meeting for the Law of the Sea Conference | July 18, 1972 |
| NSDM 178* | FY 1973 Nuclear Weapons Deployment Authorization | July 18, 1972 |
| NSDM 179 | CCC Regulations Affecting US-Soviet Grain Sale and Maritime Agreement | July 18, 1972 |
| NSDM 180 | Lend-Lease Negotiations with the USSR | July 20, 1972 |
| NSDM 181 | Commercial Commission Negotiations and Related Matters | July 20, 1972 |
| NSDM 182 | Continuing Authority to Deliver Nuclear Materials and to Acquire Utilization Facilities | July 31, 1972 |
| NSDM 183 | Nuclear Test Program for FY 1973 (TOGGLE) | July 31, 1972 |
| NSDM 184 | United States Civil Defense Policy | August 14, 1972 |
| NSDM 185 | Assistance to UK Missile Program | August 15, 1972 |
| NSDM 186 | US Military Supply Policy for the Lower Persian Gulf States and Oman | August 18, 1972 |
| NSDM 187 | International Space Cooperation - Technology and Launch Assistance | August 30, 1972 |
| NSDM 188 | PRC Blocked Assets and Private Claims | August 30, 1972 |
| NSDM 189 | GE-SNECMA Jet Engine Joint Venture | September 19, 1972 |
| NSDM 190 | Lend-Lease Negotiations with the USSR | September 20, 1972 |
| NSDM 191 | Commercial and Related Negotiations with the USSR | September 20, 1972 |
| NSDM 192 | Lend-Lease Negotiations with the USSR | October 18, 1972 |
| NSDM 193 | RVNAF Force Structure | October 24, 1972 |
| NSDM 194 | Fisheries Negotiations with Ecuador | October 27, 1972 |
| NSDM 195 | Amendment to Transportation Order T-2 Affecting the PRC | October 30, 1972 |
| NSDM 196 | Law of the Sea Instructions, 27th Session U.N. General Assembly | October 31, 1972 |
| NSDM 197 | Instructions for the Strategic Arms Limitation Talks, Geneva, November 21, 1972 | November 18, 1972 |
| NSDM 198 | SALT Standing Consultative Commission | November 18, 1972 |
| NSDM 199 | U.S. Policy Toward Peru | December 26, 1972 |
| NSDM 200 | Policy Toward Morocco, NSSM 160 | January 5, 1973 |
| NSDM 201 | Contingency Planning | January 5, 1973 |
| NSDM 202 | Arctic Program Review and Recommendations | January 22, 1973 |
| NSDM 203 | Revised Guidelines for Stockpile Planning | February 6, 1973 |
| NSDM 204 | Sale of Inertial Navigational Systems to the People's Republic of China | February 6, 1973 |
| NSDM 205 | Nuclear Test Program for Second Half FY 1973 (TOGGLE II) | February 7, 1973 |
| NSDM 206 | Instructions for the Strategic Arms Limitations Talks, Geneva, March 12, 1973 | March 11, 1973 |
| NSDM 207 | Procedures for Dealing with Various Types of Non-Military Incidents | March 13, 1973 |
| NSDM 208 | Standby Draft | March 16, 1973 |
| NSDM 209 | U.S. Policy Toward the Philippines | March 27, 1973 |
| NSDM 210 | South Vietnam Economic Support | April 11, 1973 |
| NSDM 211 | Mutual and Balanced Force Reductions (MBFR) [Note: large file, 7.04MB] | April 16, 1973 |
| NSDM 212 | Economic Policies for the Eastern European Countries | May 2, 1973 |
| NSDM 213 | Instructions for the SALT Talks | May 3, 1973 |
| NSDM 214 | Balance of Payments Offset and Burden-sharing Negotiations with NATO | May 3, 1973 |
| NSDM 215 | US-Soviet Bilateral Issues | May 3, 1973 |
| NSDM 216 | Instructions for SALT Talks | May 7, 1973 |
| NSDM 217 | SALT Standing Consultative Commission | May 16, 1973 |
| NSDM 218 | Salinity Problem with Mexico | May 28, 1973 |
| NSDM 219 | Implementation Procedures for Agreement on Measures to Reduce the Risk of the Outbreak of Nuclear War Between the USA and the USSR | June 4, 1973 |
| NSDM 220 | GE-SNECMA, CFM-56 Jet Engine Joint Development | June 4, 1973 |
| NSDM 221 | U.S. Policy Toward the Bahama Islands | June 5, 1973 |
| NSDM 222 | COCOM | June 11, 1973 |
| NSDM 223 | Private International Exchange Council | June 22, 1973 |
| NSDM 224 | National Net Assessment Process, NSSM 178 | June 28, 1973 |
| NSDM 225 | July-August 1973 Preparatory Meeting for the Law of the Sea Conference | July 16, 1973 |
| NSDM 226* | Nuclear Weapons Deployment Authorization for FY 1974 | July 18, 1973 |
| NSDM 227 | Korean Force Modernization Plan | July 27, 1973 |
| NSDM 228* | FY 1974-1976 Nuclear Weapons Stockpile | August 8, 1973 |
| NSDM 229* | FY 1974 Underground Test Program (ARBOR) | August 8, 1973 |
| NSDM 230 | U.S. Strategy and Forces for Asia | August 9, 1973 |
| NSDM 231 | Ethiopia-Kagnew Station and Military Assistance | August 14, 1973 |
| NSDM 232 | Maritime Access to Charleston, South Carolina | September 1, 1973 |
| NSDM 233 | Instructions for SALT, Geneva, September 24, 1973 | September 28, 1973 |
| NSDM 234 | US-Icelandic Defense Negotiations | October 2, 1973 |
| NSDM 235 | NSSM 150, United States Policy on Transfer of Highly Enriched Uranium for Fueling Power Reactors | October 4, 1973 |
| NSDM 236 | Instructions for IMCO Marine Pollution Conference | October 9, 1973 |
| NSDM 237 | Instructions for U.S. Commissioner, SALT Standing Consultative Commisssion, Geneva, September 24, 1973 | October 15, 1973 |
| NSDM 238* | Implementation Procedures for Agreement on Measures to Reduce the Risk of the Outbreak of Nuclear War Between the USA and the USSR | November 19, 1973 |
| NSDM 239 | National Net Assessment Process | November 27, 1973 |
| NSDM 240 | Organizational Session of U.N. Law of the Sea Conference | December 3, 1973 |
| NSDM 241 | Mutual and Balanced Force Reductions | January 10, 1974 |
| NSDM 242 | Policy for Planning the Employment of Nuclear Weapons | January 17, 1974 |
| NSDM 243 | Second Half FY 1974 Underground Nuclear Test Program (ARBOR II) | January 31, 1974 |
| NSDM 244 | International Energy Review Group | February 8, 1974 |
| NSDM 245 | Instructions for the SALT Talks, Geneva, February 19, 1974 | February 19, 1974 |
| NSDM 246 | End-Use Information Required by U.S. and COCOM Export Controls | March 7, 1974 |
| NSDM 247 | U.S. Policy on the Export of Computers to Communist Countries | March 14, 1974 |
| NSDM 248* | Changes in U.S. Force Levels on Taiwan | March 14, 1974 |
| NSDM 249 | U.S. Deployments in Thailand | March 23, 1974 |
| NSDM 250 | U.S. Policy Toward Purchase of Soviet Uranium Enrichment Services | March 29, 1974 |
| NSDM 251 | Termination of the U.N. Command in Korea | March 29, 1974 |
| NSDM 252 | Instructions for U.S. Commissioner, SALT Standing Consultative Comission, Geneva, April 2, 1974 | April 18, 1974 |
| NSDM 253 | Membership of the National Security Council Intelligence Committee | April 24, 1974 |
| NSDM 254 | Domestic Safeguards | April 27, 1974 |
| NSDM 255 | Security and Other Aspects of the Growth and Dissemination of Nuclear Power Industries | June 3, 1974 |
| NSDM 256 | Nuclear Test Ban Policy | June 10, 1974 |
| NSDM 257 | Latin American Initiatives | June 10, 1974 |
| NSDM 258* | Nuclear Weapon Yield: Amendment to NSAM 143 and NSAM 199 | June 20, 1974 |
| NSDM 259* | Programs of Cooperation for Nuclear Bomb Support of Non-U.S. NATO Nations | June 20, 1974 |
| NSDM 260 | Third United Nations Conference on the Law of the Sea | June 24, 1974 |
| NSDM 261 | Nuclear Sales to the PRC | July 22, 1974 |
| NSDM 262 | Use of U.S. Bases in Japan in the Event of Aggression Against South Korea | July 29, 1974 |
| NSDM 263 | U.S. Policy on Antarctic Mineral Resources | July 29, 1974 |
| NSDM 264 | Nuclear Test Program for FY 1975 (BEDROCK) | August 6, 1974 |
| Location of original record copies: |
NSDM 40: NSC Reference Copies All other NSDMs were scanned from the original documents housed in Box H-208. |