March 26, 1975The Biological Weapons Convention (BWC) comes into force.
A draft of the BWC, submitted by the British was opened for signature on April 10, 1972 and entered into force March 26, 1975 when twenty-two governments had deposited their instruments of ratification. It currently commits the 165 states that are party to it to prohibit the development, production, and stockpiling of biological and toxin weapons. However, the absence of any formal verification regime to monitor compliance has limited the effectiveness of the Convention. (Note: As of October 2011, an additional 12 states have signed the BWC but have yet to ratify it)
Biological Weapons Convention