Originally, the duration of the Treaty was 10 years till 2021 but it was extended for another five years till 2026. The Treaty permits “on-site inspections and exhibitions, data exchanges and notifications related to strategic offensive arms and facilities covered by the Treaty, and provisions to facilitate the use of national technical means for treaty monitoring”. At the same time, the Provision of the Treaty limits the deployment of “1500 nuclear warheads, 800 ICBM Launcher and heavy bombers” as reported by the Nuclear Threat Initiative (NTI). A recent Federation of American Scientists(FAS) study titled Estimated Global Nuclear Warhead Inventories shows that Russia has 5,977 and the United States 5,428 nuclear warheads.