Russian President Vladimir Putin has signed the bill to revoke the ratification of the CTBT, according to the relevant document published on the official legal information portal on Thursday.
During the plenary session of the Valdai Discussion Club earlier last month, Putin said that Moscow could mirror Washington's stance, withdrawing the ratification of the treaty from the lower house of the parliament.
Two days later, the US conducted underground tests at the test site in Nevada, where it had previously tested nuclear weapons. US has signed but not ratified the treaty.
The upper house of the Russian parliament adopted a bill to withdraw ratification of the CTBT on October 25.
The Comprehensive Nuclear-Test-Ban Treaty was adopted by the UN General Assembly on September 10, 1996 and opened for signature in New York on September 24, 1996.
Russia signed the CTBT on September 24, 1996, and ratified it on May 30, 2000.