Japan

1925 Geneva Protocol
Signature (Paris) 17 June 1925  
Deposit of instruments of ratification (Paris) 21 May 1970  
Antarctic Treaty
Signature (Washington) 1 December 1959  
Deposit of instruments of ratification (Washington) 4 August 1960  
Anti-Personnel Mine Ban Convention
Signature (UN) 3 December 1997  
Deposit of instruments of acceptance (UN) 30 September 1998  
Arms Trade Treaty
Signature (UN) 3 June 2013  
Deposit of instruments of acceptance (UN) 9 May 2014  
Biological Weapons Convention
Signature (Washington) 10 April 1972  
Signature (Moscow) 10 April 1972  
Signature (London) 10 April 1972  
Deposit of instruments of ratification (Moscow) 18 June 1982  
Deposit of instruments of ratification (Washington) 8 June 1982  
Deposit of instruments of ratification (London) 18 June 1982  
Chemical Weapons Convention
Signature (UN) 13 January 1993  
Deposit of instruments of ratification (UN) 15 September 1995  
Comprehensive Nuclear-Test-Ban Treaty
Signature (UN) 24 September 1996  
Deposit of instruments of ratification (UN) 8 July 1997  
Convention on Certain Conventional Weapons
Signature (UN) 22 September 1981  
Deposit of instruments of acceptance to Amendment to the Convention on Certain Conventional Weapons (UN) 10 July 2003  
Deposit of instruments of acceptance (UN) 9 June 1982  
Consent to be bound to Amended Protocol II on the Use of Mines, Booby-Traps and Other Devices (UN) 10 June 1997  
Consent to be bound to Protocol IV on Blinding Laser Weapons (UN) 10 June 1997  
Consent to be bound to Protocol II to the Convention on Certain Conventional Weapons (UN) 9 June 1982  
Consent to be bound to Protocol III to the Convention on Certain Conventional Weapons (UN) 9 June 1982  
Consent to be bound to Protocol I to the Convention on Certain Conventional Weapons (UN) 9 June 1982  
Convention on Cluster Munitions
Signature (UN) 3 December 2008  
Deposit of instruments of acceptance (UN) 14 July 2009  
Convention on Environmental Modification Techniques (ENMOD)
Deposit of instruments of accession (UN) 9 June 1982  
International Convention for the Suppression of Acts of Nuclear Terrorism
Signature (UN) 15 September 2005  
Deposit of instruments of acceptance (UN) 3 August 2007  
Outer Space Treaty
Signature (Washington) 27 January 1967  
Signature (Moscow) 27 January 1967  
Signature (London) 27 January 1967  
Deposit of instruments of ratification (Washington) 10 October 1967  
Deposit of instruments of ratification (Moscow) 10 October 1967  
Deposit of instruments of ratification (London) 10 October 1967  
Partial Test Ban Treaty
Signature (Moscow) 14 August 1963  
Signature (London) 14 August 1963  
Signature (Washington) 14 August 1963  
Deposit of instruments of ratification (Moscow) 15 June 1964  
Deposit of instruments of ratification (London) 15 June 1964  
Deposit of instruments of ratification (Washington) 15 June 1964  
Sea-Bed Treaty
Signature (Washington) 11 February 1971  
Signature (London) 11 February 1971  
Signature (Moscow) 11 February 1971  
Deposit of instruments of ratification (London) 21 June 1971  
Deposit of instruments of ratification (Moscow) 21 June 1971  
Deposit of instruments of ratification (Washington) 21 June 1971  
Treaty on the Non-Proliferation of Nuclear Weapons (NPT)
Signature (London) 3 February 1970 *
Signature (Washington) 3 February 1970 *
Signature (Moscow) 3 February 1970  
Deposit of instruments of ratification (London) 8 June 1976 *
Deposit of instruments of ratification (Moscow) 8 June 1976 *
Deposit of instruments of ratification (Washington) 8 June 1976 *