The parties have committed to entering into active negotiations as soon as this treaty enters into force with a view to reaching agreement as soon as possible on new measures to limit and reduce strategic armaments (Article XIV); The treaty provided for the application of the Permanent Advisory Committee (SSC) established by the agreement reached between the contracting parties on 21 December 1972 and which was tasked with several tasks in order to promote the objectives and implementation of the provisions of the treaty. 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. The elements of this agreement were declared in force until 1985. The SALT II Treaty banned new missile programs (a new missile defined as a 5% larger missile than the one currently used), so both sides were forced to limit their development and the construction of new types of strategic missiles, such as the development of additional fixed iCB launchers. Similarly, the agreement would limit the number of mirved ballistic missiles and long-range missiles to 1,320.  However, the United States retained its most important programs, such as the Trident rocket, with cruise missiles that President Jimmy Carter wanted to use as his main defensive weapon, because they were too slow to have a first strike capability. In return, the USSR could retain only 308 of its so-called « heavy ICBM » SS-18 launchers. Mobile ICBMs are not covered. The Soviet Union considered that, since neither party was renouncing these systems, it should not be subject to a freeze; it also refused to ban them in a future comprehensive agreement. The United States considered that it should be banned because of the control difficulties it presented.
In an official statement, the U.S. delegation said that the United States would consider the deployment of land-based mobile ICBMs during the period of the agreement to be inconsistent with its objectives. Two initial dissents were obstacles. Soviet officials tried to define as « strategic » any American or Soviet weapons system capable of reaching the territory of the other party – that is, negotiable in SALT. It would be a system based on the United States, mainly short- and medium-range bombers stationed on aircraft carriers or in Europe, but it would have excluded, for example, Soviet medium-range missiles directed towards Western Europe. The United States decided that salt-negotiated weapons included intercontinental systems. Its forward-facing armed forces were used to fight Soviet medium-range missiles and aircraft aimed at American allies. Accepting the Soviet approach would have had an impact on the alliance`s commitments. 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.  As its title states, « the interim agreement between the United States and the Union of Soviet Socialist Republics on certain measures to limit offensive weapons » was limited in duration and scope.