U.S. Code
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Title 10
» Subtitle Subtitle A— General Military Law › Part PART VI— ELEMENTS OF DEPARTMENT OF DEFENSE AND OTHER MATTERS › Subpart Subpart B— Atomic Energy Defense › Chapter CHAPTER 602— NUCLEAR WEAPONS STOCKPILE MATTERS › Subchapter SUBCHAPTER I— STOCKPILE STEWARDSHIP AND WEAPONS PRODUCTION
10 U.S.C. § 6121
Testing of nuclear weapons
(a)Underground Testing.—No underground test of nuclear weapons may be conducted by the United States after September 30, 1996, unless a foreign state conducts a nuclear test after this date, at which time the prohibition on United States nuclear testing is lifted.(b)Atmospheric Testing.—None of the funds appropriated pursuant to the National Defense Authorization Act for Fiscal Year 1994 (Public Law 103–160; 107 Stat. 1547) or any other Act for any fiscal year may be available to maintain the capability of the United States to conduct atmospheric testing of a nuclear weapon.(Added Pub. L. 119–60, div. C, title XXXI, § 3111(a), Dec. 18, 2025, 139 Stat. 1358.)Editorial NotesReferences in TextThe National Defense Authorization Act for Fiscal Year 1994, referred to in subsec. (b), is Pub. L. 103–160, Nov. 30, 1993, 107 Stat. 1547. For complete classification of this Act to the Code, see Tables.
Prior ProvisionsProvisions similar to those in this section were contained in section 2530 of Title 50, War and National Defense, prior to repeal by Pub. L. 119–60, § 3111(b)(1).