activities 6,567,840 6,538,840 Total, Atomic Energy Defense Activities 23,052,840 23,052,840 Total, Discretionary Funding 23,190,648 23,190,648 Nuclear Energy Idaho sitewide safeguards and security 137,808 137,808 Total, Nuclear Energy 137,808 137,808 Federal Salaries and Expenses Program direction 434,699 422,999 Alignment with FTEs authorized [–11,700] Weapons Activities Directed stockpile work Life extension programs and major alterations B61 Life extension program 792,611 792,611 W76 Life extension program 0 0 W76–2 Modification program 10,000 10,000 W88 Alteration program 304,186 304,186 W80–4 Life extension program 898,551 898,551 IW1 0 0 W87–1 Modification Program (formerly IW1) 112,011 112,011 Total, Life extension programs and major alterations 2,117,359 2,117,359 Stockpile systems B61 Stockpile systems 71,232 71,232 W76 Stockpile systems 89,804 89,804 W78 Stockpile systems 81,299 81,299 W80 Stockpile systems 85,811 85,811 B83 Stockpile systems 51,543 51,543 W87 Stockpile systems 98,262 98,262 W88 Stockpile systems 157,815 157,815 Total, Stockpile systems 635,766 635,766 Weapons dismantlement and disposition Operations and maintenance 47,500 47,500 Stockpile services Production support 543,964 543,964 Research and development support 39,339 40,339 UFR list—technology maturation [1,000] R&D certification and safety 236,235 246,235 UFR list—technology maturation [10,000] Management, technology, and production 305,000 305,000 Total, Stockpile services 1,124,538 1,135,538 Strategic materials Uranium sustainment 94,146 94,146 Plutonium sustainment 0 0 Plutonium sustainment: Plutonium sustainment 691,284 691,284 Plutonium pit production project 21,156 21,156 Total, Plutonium sustainment: 712,440 712,440 Tritium sustainment 269,000 269,000 Domestic uranium enrichment 140,000 140,000 Lithium sustainment 28,800 28,800 Strategic materials sustainment 256,808 256,808 Total, Strategic materials 1,501,194 1,501,194 Total, Directed stockpile work 5,426,357 5,437,357 Research, development, test, and evaluation (RDT&E)