The resulting set of agreements (SALT I) included the Ballistic Missile Systems (ABM) Treaty and the Interim Agreement and Protocol on the Limitation of Strategic Offensive Weapons. Both were signed by President Richard M. Nixon for the United States and Leonid Brezhnev, General Secretary of the Communist Party of the Soviet Union, for the U.S.S.R. on May 26, 1972 at a summit in Moscow. Subject to the provisions of the agreement, the parties have been granted the right to modernize and exchange strategic missiles and ballistic missile launchers under the agreement (Article IV). In the agreed C Declaration, the parties expressed their understanding that modernization and replacement would not significantly increase the size of ICBMs on the ground. The parties also expressed a common understanding that the term “significantly increased” means that an increase would not exceed 10-15% of the current dimensions of the Earth`s ICBM-Silowerfer. The parties also agreed that the number of ICBM and SLBM test and training carriers would not increase significantly and that the construction or conversion of ICBM launchers on test runways should only be carried out for testing and training purposes (Declaration of Agreement D). Negotiations continued from November 17, 1969 to May 1972, in a series of meetings that began in Helsinki, with the U.S. delegation led by Gerard C. Smith, Director of the Arms Control and Disarmament Agency. The following meetings took place between Vienna and Helsinki. After a long deadlock, the first results of SALT I arrived in May 1971, when an agreement was reached on the ABM systems.
Further talks ended negotiations on 26 May 1972 in Moscow, when Richard Nixon and Leonid Brezhnev signed both the Anti-Ballistic Missile Treaty and the Interim Agreement between the United States of America and the Union of Soviet Socialist Republics on certain measures to limit strategic offensive weapons.  On June 18, 1979, an agreement was reached in Vienna to limit strategic launchers, signed by Leonid Brezhnev and Carter at a ceremony in the Redouten Hall of the Imperial Hofburg.  The agreement authorizes the contracting parties to withdraw from the agreement with six months` notice if they decide that exceptional events related to the purpose of the agreement have jeopardized their highest interests. In its unilateral declaration A, the United States stated that if an agreement with more comprehensive restrictions on strategic offensive weapons was not reached within five years, the supreme interests of the United States could be threatened and would provide a basis for the exit of the ABM Treaty. The Strategic Arms Limitation Talks (SALT) were two bilateral conferences and international treaties that involved the United States and the Soviet Union, the Cold War superpowers, on the issue of arms control. The two roundtables and agreements were the points OF SALT I and SALT II. The Vladivostok Summit in November 1974 led to a major breakthrough in favour of the agreement, when President Gerald Ford and Secretary General Leonid Brezhnev agreed on the basic framework of the SALT II agreement.