MOSCOW, September 14 (RIA Novosti) - The lower house of Russia's parliament ratified Friday an additional protocol between Russia and the UN nuclear watchdog to a Soviet-era agreement, on guarantees in Russia.

The document envisions a set of additional organizational and technical measures to control civilian nuclear activity among Non-Proliferation Treaty member states. In particular, Russia must provide information to the International Atomic Energy Agency on its nuclear exports to non-nuclear powers and data on its cooperation with them.

States possessing nuclear weapons are given the right to select control measures from those proposed in the protocol, which they deem possible to use on their territory.

"This protocol confirms Russia's leading role in strengthening the global nuclear nonproliferation regime," Nikolai Spassky, deputy head of the Nuclear Power Agency, told journalists.

He said that protocol's adoption would not harm Russia's security, as it is based on "the principle of voluntariness."