Ambassador Thomas Graham Jr. served at the Arms Control Agency from 1970-1997 in many capacities. During this period he served in a major role in every significant arms control and non-proliferation negotiation in which the United States took part including the Salt I, Salt II and Start negotiations as well as the test ban, conventional armed forces in Europe, chemical weapons, biological weapons, and Nuclear Non-Proliferation Treaty extension negotiations.
Ambassador Graham served for nearly three decades at the U.S. Arms Control and Disarmament Agency, including a decade and a half as general counsel as well as Acting Director of the agency for most of 1993. In 1993 he led the effort to establish a long-term moratorium on the conduct of nuclear weapons tests. From 1994 to 1996, he was a principal figure in the worldwide effort to successfully support the conclusion of the Comprehensive Test Ban Treaty negotiations.
In 1994 President Clinton appointed Thomas Graham Jr. as his special representative for arms control, non-proliferation, and disarmament, with the rank of Ambassador. From 1993 to 1995 Ambassador Graham led the successful U.S. government effort to indefinitely extend the Nuclear Non-Proliferation Treaty.