<Tr> <Th> Nuclear Non-proliferation Treaty </Th> <Td> 000000001968 - 01 - 01 - 0000 January 1, 1968 </Td> <Td> 000000001970 - 03 - 05 - 0000 March 5, 1970 </Td> <Td> yes </Td> <Td> Bans the proliferation of nuclear technology to non-nuclear nations . </Td> </Tr> <Tr> <Th> Seabed Arms Control Treaty </Th> <Td> 000000001971 - 02 - 11 - 0000 February 11, 1971 </Td> <Td> 000000001972 - 05 - 18 - 0000 May 18, 1972 </Td> <Td> yes </Td> <Td> Bans emplacement of nuclear weapons on the ocean floor outside territorial waters . </Td> </Tr> <Tr> <Th> Strategic Arms Limitation Treaty (SALT I) </Th> <Td> 000000001972 - 01 - 01 - 0000 January 1, 1972 </Td> <Td> </Td> <Td> no </Td> <Td> A five - year ban on installing launchers . </Td> </Tr> <Tr> <Th> Anti-Ballistic Missile Treaty </Th> <Td> 000000001972 - 05 - 26 - 0000 May 26, 1972 </Td> <Td> 000000001972 - 08 - 03 - 0000 August 3, 1972 </Td> <Td> no </Td> <Td> Restricts ABM development; additional protocol added in 1974; abrogated by the USA in 2002 . </Td> </Tr>

Where does the united states test nuclear weapons