"Suspend the agreement between the Russian and the US governments on the disposition of plutonium, designated as plutonium no longer required for defense purposes, its use and cooperation in this field," the document states.
According to the document, Russia's weapons-grade plutonium would not be used for creation of nuclear weapons or any research and development activities or tests carried out with military purposes.
Under the US-Russian PMDA, originally signed in 2000, both parties agreed to dispose of at least 34 metric tons of weapons grade plutonium, enough to produce 17,000 nuclear bombs.
The latest decree cites "the emergence of a threat to strategic stability as a result of hostile actions by the US in respect to Russia," as well as Washington's inability to fulfill its commitments to dispose of surplus weapons-grade plutonium behind its decision.
At the same time, Russia has already created infrastructure sufficient to dispose of the country's weapons-grade plutonium at its Beloyarsk Nuclear Power Plant.