; and (2) the number of such reviews conducted for individuals who are citizens or agents of each country on the sensitive countries list referred to in that section. (f) Definitions In this section: (1) Appropriate congressional committees The term appropriate congressional committees means— (A) the Committee on Armed Services and the Select Committee on Intelligence of the Senate; and (B) the Committee on Armed Services and the Permanent Select Committee on Intelligence of the House of Representatives. (2) National security laboratory The term national security laboratory has the meaning given that term in section 4002 of the Atomic Energy Defense Act ( 50 U.S.C. 2501 ). 3116. Extension of authority for acceptance of contributions for acceleration of removal or security of fissile materials, radiological materials, and related equipment at vulnerable sites worldwide Section 3132(f)(7) of the Ronald W. Reagan National Defense Authorization Act for Fiscal Year 2005 ( 50 U.S.C. 2569(f)(7) ) is amended by striking December 31, 2018 and inserting December 31, 2023 . 3117. Modification of limitation on development of low-yield nuclear weapons (a) Findings Congress makes the following findings: (1) The global posture of strategic nuclear forces has changed dramatically during the 10 years preceding the date of the enactment of this Act. (2) The Government of the Russian Federation— (A) is violating the Treaty between the United States of America and the Union of Soviet Socialist Republics on the Elimination of their Intermediate-Range and Shorter-Range Missiles, signed at Washington December 8, 1987, and entered into force June 1, 1988 (commonly known as the INF Treaty )