Nuclear Explosions for the National Economy

Nuclear Explosions for the National Economy (Russian: Ядерные взрывы для народного хозяйства, romanized: Yadernyye vzryvy dlya narodnogo khozyaystva; sometimes referred to as Program #7) was a Soviet program to investigate peaceful nuclear explosions (PNEs). It was analogous to the United States program Operation Plowshare.

One of the better-known tests was Chagan of January 15, 1965. Radioactivity from the Chagan test was detected over Japan by both the U.S. and Japan in apparent violation of the 1963 Partial Test Ban Treaty (PTBT). The United States complained to the Soviets, but the matter was dropped.