MFFF	Mixed Oxide Fuel Fabrication Facility
MIRV	Multiple Independently-Targetable Reentry Vehicle
MOX	Mixed Oxide
MTCR	Missile Technology Control Regime
NAC	New Agenda Coalition
NAM	Non-Aligned Movement
NATO	North Atlantic Treaty Organization
NFU	No First Use
NFWG	Nuclear Forensics Working Group
NGO	Non-Governmental Organization
NNSA	National Nuclear Security Administration
NNWS	Non-Nuclear-Weapon States
NPDI	Non-Proliferation and Disarmament Initiative
NPR	Nuclear Posture Review
NPT	Nuclear Non-Proliferation Treaty
NRC	Nuclear Regulatory Commission
NRRC	Nuclear Risk Reduction Center
NSAs	Negative Security Assurances
NSCG	Nuclear Security Contact Group
NSF	Nuclear Security Fund
NSG	Nuclear Suppliers Group
NSSC	Nuclear Security Training and Support Centres
NSSG	Nuclear Safety and Security Group
NSWG	Nuclear Security Working Group
NTI	Nuclear Threat Initiative
NWFZ	Nuclear-Weapon-Free Zone
NWS	Nuclear-Weapon States
ONR	Office for Nuclear Regulation
OPANAL	Agency for the Prohibition of Nuclear Weapons in Latin America and the Caribbean
PMDA	Plutonium Management and Disposition Agreement
PSI	Proliferation Security Initiative
RRDB	Research Reactor Database
SEANWFZ	Southeast Asia 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
SMR	Small Modular Reactors
SQP	Small Quantity Protocol
SSBN	Nuclear-Powered Ballistic Missile Submarine
SSP	Stockpile Stewardship Program
START	Strategic Arms Reduction Treaty (Talks)
TPNW	Treaty on the Prohibition of Nuclear Weapons
UN	United Nations
UNGA	United Nations General Assembly
UNOCT	United Nations Office of Counter-Terrorism
UNODC	United Nations Office on Drugs and Crime
UNSCR	UN Security Council Resolution
UUV	Unmanned Underwater Vehicle
VOA	Voluntary Offer Agreement
WA	Wassenaar Arrangement
WMD	Weapons of Mass Destruction