Signed in Washington , D.C. by U.S. President Ronald Reagan and General Secretary Mikhail Gorbachev on 8 December 1987 , it was ratified by the United States Senate on 27 May 1988 and came into force on 1 June of that year .
It was signed in Washington , D.C. by U.S. President Ronald Reagan and General Secretary Mikhail Gorbachev on December 8 , 1987 . It was ratified by the United States Senate on May 27 , 1988 and came into force on June 1 of that year .