MFFF	Mixed Oxide Fuel Fabrication Facility
MIRV	Multiple Independently-Targetable Reentry Vehicle
ML	Machine Learning
MOX	Mixed Oxide
MRBM	Medium-Range Ballistic Missile
MSCFP	Marie Sklodowska-Curie Fellowship Program
MSP	Meeting of States Parties
MTCR	Missile Technology Control Regime
NAC	New Agenda Coalition
NAM	Non-Aligned Movement
NATO	North Atlantic Treaty Organization
NCG	Nuclear Consultative Group
NDAA	National Defense Authorization Act
NDV	Nuclear Disarmament Verification
NFU	No First Use
NFWG	Nuclear Forensics Working Group
NFZ	Nuclear Free Zone
NGO	Non-Governmental Organization
NIC	National Intelligence Council
NIST	National Institute of Standards and Technology
NMAC	Nuclear Material Accountancy and Control
NNSA	National Nuclear Security Administration
NNSS	Nevada National Security Site
NNWS	Non-Nuclear-Weapon States
NPDG	Nonproliferation Director-General’s Group
NPDI	Non-Proliferation and Disarmament Initiative
NPP	Nuclear Power Plant
NPR	Nuclear Posture Review
NPT	Nuclear Non-Proliferation Treaty
NRC	Nuclear Regulatory Commission
NRSWG	Nuclear and Radiological Working Group
NSA	Negative Security Assurances
NSCG	Nuclear Security Contact Group
NSF	Nuclear Security Fund
NSG	Nuclear Suppliers Group
NSSC	Nuclear Security Training and Support Centers
NSSG	Nuclear Safety and Security Group
NSTDC	Nuclear Security Training and Demonstration Center
NTI	Nuclear Threat Initiative
NuDiVe	Nuclear Disarmament Verification Exercise
NWFZ	Nuclear-Weapon-Free Zone
NWS	Nuclear-Weapon States
ODNI	Office of the Director of National Intelligence
OECD	Organization for Economic Co-operation and Development
ONR	Office for Nuclear Regulation
OPANAL	The Agency for the Prohibition of Nuclear Weapons in Latin America and the Caribbean
PFEP	Pilot Fuel Enrichment Plant
PIV	Physical Inventory Verification
PLA	People’s Liberation Army
PMDA	Plutonium Management and Disposition Agreement
PRC	People’s Republic of China
PrepCom	Preparatory Committee
PSI	Proliferation Security Initiative
P5	Permanent Members of the United Nations Security Council
R&D	Research and Development
RECA	Radiation Exposure Compensation Act
RECNA	Research Center for Nuclear Weapons Abolition
RevCon	Review Conference
RG	Regulatory Guide
RISS	Regulatory Infrastructure Mission for Radiation Safety and Nuclear Security
RMI	Republic of the Marshall Islands
ROK	Republic of Korea
SEANWFZ	Southeast Asian Nuclear-Weapon-Free Zone
SIPRI	Stockholm International Peace Research Institute
SLA	State-Level Approach
SLBM	Submarine Launched Ballistic Missile
SLC	State-Level Concept
SLCM	Sea-Launched Cruise Missile
SLCM-N	Nuclear-Armed Sea-Launched Cruise Missile
SMR	Small Modular Reactors
SNRIU	State Nuclear Regulatory Inspectorate of Ukraine
SQP	Small Quantities Protocol
SRBM	Short-Range Ballistic Missile
SSBN	Nuclear-Powered Ballistic Missile Submarine
SSN	Nuclear-Powered Attack Submarine
SSP	Stockpile Stewardship Program
New START	New Strategic Arms Reduction Treaty
TPNW	Treaty on the Prohibition of Nuclear Weapons
UAV	Unmanned Aerial Vehicle
UCF	Uranium Conversion Facility
UF6	Uranium Hexafluoride
UN	United Nations
UNGA	United Nations General Assembly
UNIDIR	United Nations Institute for Disarmament Research
UNOCT	United Nations Office of Counter-Terrorism
UNODA	United Nations Office for Disarmament Affairs
UNSCR	UN Security Council Resolution
UOC	Uranium Oxide Concentrate
UTR-KINKI	Kinki University Teaching and Research Reactor
WGU	Weapon-Grade Uranium
WINS	World Association for Nuclear Security
WMD	Weapons of Mass Destruction
WPK	Worker’s Party of Korea
WTO	World Trade Organization
ZNPP	Zaporizhzhia Nuclear Power Plant
2MSP	Second Meeting of the States Parties to the TPNW