Finland

1925 Geneva Protocol
Signature (Paris) 17 June 1925  
Deposit of instruments of ratification (Paris) 26 June 1929  
Antarctic Treaty
Deposit of instruments of accession (Washington) 15 May 1984  
Anti-Personnel Mine Ban Convention
Deposit of instruments of accession (UN) 9 January 2012  
Arms Trade Treaty
Signature (UN) 3 June 2013  
Deposit of instruments of ratification (UN) 2 April 2014 *
Biological Weapons Convention
Signature (Washington) 10 April 1972  
Signature (Moscow) 10 April 1972  
Signature (London) 10 April 1972  
Deposit of instruments of ratification (Washington) 4 February 1974  
Deposit of instruments of ratification (Moscow) 4 February 1974  
Deposit of instruments of ratification (London) 4 February 1974  
Chemical Weapons Convention
Signature (UN) 14 January 1993  
Deposit of instruments of ratification (UN) 7 February 1995  
Comprehensive Nuclear-Test-Ban Treaty
Signature (UN) 24 September 1996  
Deposit of instruments of ratification (UN) 15 January 1999  
Convention on Certain Conventional Weapons
Signature (UN) 10 April 1981  
Deposit of instruments of ratification (UN) 8 April 1982 *
Deposit of instruments of acceptance to Amendment to the Convention on Certain Conventional Weapons (UN) 22 June 2004  
Consent to be bound to Protocol V on Explosive Remnants of War (UN) 23 March 2005  
Consent to be bound to Protocol I to the Convention on Certain Conventional Weapons (UN) 8 April 1982  
Consent to be bound to Protocol II to the Convention on Certain Conventional Weapons (UN) 8 April 1982  
Consent to be bound to Amended Protocol II on the Use of Mines, Booby-Traps and Other Devices (UN) 3 April 1998 *
Consent to be bound to Protocol IV on Blinding Laser Weapons (UN) 11 January 1996  
Consent to be bound to Protocol III to the Convention on Certain Conventional Weapons (UN) 8 April 1982  
Convention on Environmental Modification Techniques (ENMOD)
Signature (UN) 18 May 1977  
Deposit of instruments of ratification (UN) 12 May 1978  
International Convention for the Suppression of Acts of Nuclear Terrorism
Signature (UN) 14 September 2005  
Deposit of instruments of acceptance (UN) 13 January 2009  
Outer Space Treaty
Signature (Moscow) 27 January 1967  
Signature (London) 27 January 1967  
Signature (Washington) 27 January 1967  
Deposit of instruments of ratification (Washington) 12 July 1967  
Deposit of instruments of ratification (Moscow) 12 July 1967  
Deposit of instruments of ratification (London) 12 July 1967  
Partial Test Ban Treaty
Signature (Moscow) 8 August 1963  
Signature (London) 8 August 1963  
Signature (Washington) 8 August 1963  
Deposit of instruments of ratification (London) 9 January 1964  
Deposit of instruments of ratification (Moscow) 9 January 1964  
Deposit of instruments of ratification (Washington) 9 January 1964  
Sea-Bed Treaty
Signature (Washington) 11 February 1971  
Signature (Moscow) 11 February 1971  
Signature (London) 11 February 1971  
Deposit of instruments of ratification (London) 8 June 1971  
Deposit of instruments of ratification (Washington) 8 June 1971  
Deposit of instruments of ratification (Moscow) 8 June 1971  
Treaty on Open Skies
Deposit of instruments of accession (Budapest) 12 December 2002 *
Deposit of instruments of accession (Ottawa) 13 December 2002  
Treaty on the Non-Proliferation of Nuclear Weapons (NPT)
Signature (Moscow) 1 July 1968  
Signature (Washington) 1 July 1968  
Signature (London) 1 July 1968  
Deposit of instruments of ratification (Moscow) 5 February 1969  
Deposit of instruments of ratification (Washington) 5 February 1969  
Deposit of instruments of ratification (London) 5 February 1970