Oman

Anti-Personnel Mine Ban Convention
Deposit of instruments of accession (UN) 20 August 2014  
Biological Weapons Convention
Deposit of instruments of accession (Washington) 31 March 1992  
Chemical Weapons Convention
Signature (UN) 2 February 1993  
Deposit of instruments of ratification (UN) 8 February 1995  
Comprehensive Nuclear-Test-Ban Treaty
Signature (UN) 23 September 1999  
Deposit of instruments of ratification (UN) 13 June 2003  
Treaty on the Non-Proliferation of Nuclear Weapons (NPT)
Deposit of instruments of accession (Washington) 23 January 1997