"New START [Strategic Arms Reduction Treaty] provides the parties with 7 years to reduce their forces, and will remain in force for a total of 10 years. It limits each side to no more than 800 deployed and nondeployed land-based intercontinental ballistic missile (ICBM) and submarine-launched ballistic missile (SLBM) launchers and deployed and nondeployed heavy bombers equipped to carry nuclear armaments. [...] New START contains detailed definitions and counting rules that will help the parties calculate the number of warheads that count under the treaty limits. Moreover, the delivery vehicles and their warheads will count under the treaty limits until they are converted or eliminated according to the provisions described in the treaty's Protocol. These provisions are far less demanding than those in the original START Treaty and will provide the United States and Russia with far more flexibility in determining how to reduce their forces to meet the treaty limits. [...] While the Trump Administration has not offered an official assessment of the treaty, Secretary of State-designate Tillerson offered support during his confirmation hearings, noting that he supports 'the long-standing bipartisan policy of engaging with Russia and other nuclear arms states to verifiably reduce nuclear stockpiles' and that it is important for the United States 'to stay engaged with Russia [and] hold them accountable to commitments made under the New START.'"
CRS Report for Congress, R41219
Federation of American Scientists: http://www.fas.org/sgp/crs/index.html