These limitations were based on a rigorous analysis conducted by Ministry of Defence planners to support the 2010 Nuclear Posture Review. These aggregate limits consist of 1,550 nuclear warheads, including warheads on intercontinental missiles (ICBM), ballistic missile warheads used by submarines (SLBM) and even any heavy bomber used for nuclear weapons. This is 74 per cent less than the limit previously set by the 1991 treaty and 30 per cent less than the 2002 Moscow Treaty limit. The two sides are also limited to a total of 800 ICBM launchers, SLBM launchers and heavy bombers equipped for nuclear weapons, which are used and not used. In addition, there is a separate ceiling of 700 ICBMs used, used SLBMs and heavy bombers used, equipped for nuclear weapons, which is less than half the corresponding strategic limit for nuclear terminal vehicles set in the previous treaty. Although these new restrictions have been established, the new treaty contains no restrictions on the experimentation, development or detesting of current or planned U.S. missile defence programs and conventional limited-range strike capabilities.  From 6 to 19 February, the delegations of the United States and Russia met in Geneva, Switzerland, for the fifth meeting of the Bilateral Advisory Committee to discuss practical issues related to the implementation of the new PROGRAMME. Delegations reached agreement on the provisions for the exchange of telemetry information resulting from the introductions of ICBM and SLBM in 2013. The duration of the new contract is ten years and cannot be renewed for up to five years. It contains a standard withdrawal clause, like most arms control agreements.
The 2002 Moscow Treaty was replaced by the subsequent treaty.  In October 2008, the United States and Russia met with representatives of Ukraine, Belarus and Kazakhstan in the Joint Compliance and Implementation Commission (JCIC), but no agreement was reached on the extension of START I. Each country is not authorized to deploy a total of more than 700 intercontinental missiles, ballistic missiles and heavy bombers launched by submarines and equipped for nuclear weapons.