The Hastening Arms Limitations Talks (HALT) Act of 2025 establishes a comprehensive United States policy aimed at reducing and eliminating nuclear weapon threats. It calls for the U.S. to lead international negotiations for a 21st-century global nuclear freeze movement, building on past arms control successes. The bill emphasizes the existential threat posed by nuclear weapons and the need for renewed efforts in disarmament. The policy specifically directs the U.S. to engage with other nuclear-weapon states to negotiate and conclude multilateral agreements. These agreements should include provisions for a verifiable freeze on the testing, production, and deployment of nuclear weapons and their delivery vehicles. They also seek to establish a numerical ceiling on deployed strategic and non-strategic systems and warheads for all nuclear-armed countries, ideally at 2019 levels. Further provisions include adopting a "no first use" nuclear policy, expanding IAEA access for NPT non-compliance, and refraining from "launch on warning" postures. The bill also mandates efforts to rejuvenate negotiations for a verifiable Fissile Material Treaty and to convene head-of-state summits on nuclear disarmament. Crucially, it prohibits the use of funds for explosive nuclear weapons tests without a presidential report on the stockpile and subsequent congressional approval through a joint resolution.