NUCLEAR WEAPONS EFFECTS TESTING BY DEPARTMENT OF DEFENSE.

SEC. 261. NUCLEAR WEAPONS EFFECTS TESTING BY DEPARTMENT OF DEFENSE. (a) Limitation on Obligation of Funds.—The Secretary of Defense may not obligate funds in preparation for any activity of the Department of Defense, including the so-called “Mighty Uncle” test, to study the effects of a nuclear weapon explosion through underground nuclear weapons testing unless that test is permitted in accordance with the provisions of section 507 of Public Law 102–377 (106 Stat. 1343). (b) Certain Actions Not Prohibited.—Subsection (a) does not preclude the Secretary of Defense, acting through the Director of the Defense Nuclear Agency, from— (1) proceeding with underground nuclear test tunnel deactivation and environmental cleanup; or (2) expending funds for infrastructure activities not covered by the limitation in subsection (a). (c) Funding.—Of the funds authorized to be appropriated pursuant to section 201 for Defense-wide activities, not more than $38,000,000 may be used for activities described in subsection (b).