WASHINGTON — The United States and the Soviet Union have agreed in principle to discuss problems of verifying underground testing of nuclear weapons, Administration officials said today.
The discussions, probably later in the summer, would be the first under the Reagan Administration with the Soviets on ways to make sure limits set by an unratified 1974 treaty were being observed.
The United States would hope to gain from the talks "some sort of technically acceptable means of inspection," said one of the officials, who demanded anonymity. He said this would call for some form of on-site inspection of Soviet testing facilities.
The Administration has proposed that the Soviets allow monitors to sink cables that would record the force of test detonations, but the procedure, known as CORTEX, has elicited little interest in Moscow, the officials said.