Los Alamos, New Mexico, $22,000,000. Project 18–D–922, BL Component Test Complex, Bettis Atomic Power Laboratory, West Mifflin, Pennsylvania,$3,100,000. Project 18–D–921, KS Overhead Piping, Kesselring Site, West Milton, New York, $10,716,000. Project 18–D–920, KL Fuel Development Laboratory, Knolls Atomic Power Laboratory, Schenectady, New York, $1,100,000. 3102. Defense environmental cleanup (a) Authorization of appropriations Funds are hereby authorized to be appropriated to the Department of Energy for fiscal year 2018 for defense environmental cleanup activities in carrying out programs as specified in the funding table in section 4701. (b) Authorization of new plant projects From funds referred to in subsection (a) that are available for carrying out plant projects, the Secretary of Energy may carry out, for defense environmental cleanup activities, the following new plant projects: Project 18–D–401, Saltstone Disposal Units numbers 8 and 9, Savannah River Site, Aiken, South Carolina, $500,000. Project 18–D–402, Emergency Operations Center Replacement, Savannah River Site, Aiken, South Carolina, $500,000. Project 18–D–404, Modification of Waste Encapsulation and Storage Facility, Hanford Nuclear Reservation, Richland, Washington, $6,500,000. 3103. Other defense activities Funds are hereby authorized to be appropriated to the Department of Energy for fiscal year 2018 for other defense activities in carrying out programs as specified in the funding table in section 4701. 3104. Nuclear energy Funds are hereby authorized to be appropriated to the Department of Energy for fiscal year 2018 for nuclear energy as specified in the funding table in section 4701. B Program Authorizations, Restrictions, and Limitations 3111. Assessment and development of prototype nuclear weapons of foreign countries (a) Stockpile stewardship, management, and responsiveness plan Section 4203(d)(1) of the Atomic Energy Defense Act ( 50 U.S.C. 2523(d)(1) ) is amended— (1) in subparagraph (M), by striking