Nepal

1925 Geneva Protocol
Deposit of instruments of accession (Paris) 9 May 1969  
Biological Weapons Convention
Signature (Washington) 10 April 1972  
Signature (Moscow) 10 April 1972  
Signature (London) 10 April 1972  
Deposit of instruments of ratification (Moscow) 11 November 2016  
Deposit of instruments of ratification (Washington) 4 November 2016  
Deposit of instruments of ratification (London) 4 November 2016  
Chemical Weapons Convention
Signature (UN) 19 January 1993  
Deposit of instruments of ratification (UN) 18 November 1997  
Comprehensive Nuclear-Test-Ban Treaty
Signature (UN) 8 October 1996  
Outer Space Treaty
Signature (London) 6 February 1967  
Signature (Moscow) 3 February 1967  
Signature (Washington) 3 February 1967  
Deposit of instruments of ratification (Washington) 22 November 1967  
Deposit of instruments of ratification (Moscow) 16 October 1967  
Deposit of instruments of ratification (London) 10 October 1967  
Partial Test Ban Treaty
Signature (Moscow) 26 August 1963  
Signature (Washington) 30 August 1963  
Signature (London) 26 August 1963  
Deposit of instruments of ratification (Washington) 7 October 1964  
Deposit of instruments of ratification (Moscow) 7 October 1964  
Deposit of instruments of ratification (London) 7 October 1964  
Sea-Bed Treaty
Signature (Washington) 11 February 1971  
Signature (Moscow) 11 February 1971  
Signature (London) 24 February 1971  
Deposit of instruments of ratification (Washington) 9 August 1971  
Deposit of instruments of ratification (Moscow) 29 July 1971  
Deposit of instruments of ratification (London) 6 July 1971  
Treaty on the Non-Proliferation of Nuclear Weapons (NPT)
Signature (Washington) 1 July 1968  
Signature (Moscow) 1 July 1968  
Signature (London) 1 July 1968  
Deposit of instruments of ratification (London) 3 February 1970  
Deposit of instruments of ratification (Washington) 5 January 1970  
Deposit of instruments of ratification (Moscow) 9 January 1970