107 STAT. 1946 PUBLIC LAW 103-160—NOV. 30, 1993 ment activities in, the communities referred to in subsection (a)(D, obligate more than $5,000,000 of the $30,000,000 appropriated to the Department of Energy for such purpose pursuant to the authorization of appropriations in section 3102 until 30 days after the date on which the Secretary submits to the Congress the plan required under that subsection. 42 USC 2121 SEC. 3136. PROHIBITION ON RESEARCH AND DEVELOPMENT OF LOW- note. YIELD NUCLEAR WEAPONS. (a) UNITED STATES POLICY. — It shall be the policy of the United States not to conduct research and development which could lead to the production by the United States of a new low-yield nuclear weapon, including a precision low-yield warhead. (b) LIMITATION.—The Secretary of Energy may not conduct, or provide for the conduct of, research and development which could lead to the production by the United States of a low-yield nuclear weapon which, as of the date of the enactment of this Act, has not entered production. (c) EFFECT ON OTHER RESEARCH AND DEVELOPMENT. — Nothing in this section shall prohibit the Secretary of Energy from conducting, or providing for the conduct of, research and development necessary— (1) to design a testing device that has a yield of less than five kilotons; (2) to modify an existing weapon for the purpose of addressing safety and reliability concerns; or (3) to address proliferation concerns. (d) DEFINITION.—In this section, the term "low-yield nuclear weapon" means a nuclear weapon that has a yield of less than five Kilotons. 42 USC 2121 SEC. 3137. TESTING OF NUCLEAR WEAPONS. (a) IN GENERAL.—Of the funds authorized to be appropriated under section 3101(a)(2) for the Department of Energy for fiscal year 1994 for weapons testing, $211,326,000 shall be available for infrastructure maintenance at the Nevada Test Site, and for maintaining the technical capability to resume underground nuclear testing at the Nevada Test Site. (b) ATMOSPHERIC TESTING OF NUCLEAR WEAPONS.— None of the funds appropriated pursuant to this Act 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. 42 USC 2121 SEC. 3138. STOCKPILE STEWARDSHIP PROGRAM. ^°^' (a) ESTABLiSHMENT.The Secretary of Energy shall establish a stewardship program to ensure the preservation of the core intellectual and technical competencies of the United States in nuclear weapons, including weapons design, system integration, manufacturing, security, use control, reliability assessment, and certification. (b) PROGRAM ELEMENTS. —The program shall include the following: (1) An increased level of effort for advanced computational capabilities to enhance the simulation and modeling capabilities of the United States with respect to the detonation of nuclear . weapons.
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