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The Nuclear Suppliers Group

A US B-52 bomber taxis on a runway

.The Nuclear Suppliers Group (NSG), created in 1974, aims to prevent civilian nuclear trade from contributing to nuclear weapons programs in non-nuclear weapon states.

Whereas the Zangger Committee focuses on controlling transfers to states outside the non-proliferation treaty, the NSG's guidelines deal with the transfer of nuclear-related items to all non-nuclear weapon states regardless of their non-proliferation treaty status.

These guidelines require recipient governments to provide formal assurances that transferred items will not be diverted to unsafeguarded nuclear facilities or nuclear explosive activities. The guidelines also set out strengthened re-transfer provisions and requirements for the physical protection of nuclear material and facilities. They require particular restraint with respect to trade in facilities, technology or equipment that may be used for uranium enrichment or plutonium reprocessing- the two key paths to the manufacture of nuclear weapons.

In 1992 additional guidelines were established for transfers of nuclear equipment, material and technology with both civil and military applications. The NSG also amended its guidelines to require non-nuclear weapon states to accept the application of IAEA safeguards on all their current and future nuclear activities as a condition of nuclear supply.