; conversion, modification, and extension of federally owned buildings; preliminary planning and design of projects; and operation and maintenance of secure work environment facilities and secure networking capabilities; $51,895,000, to remain available until expended. Drug enforcement administration Salaries and expenses For necessary expenses of the Drug Enforcement Administration, including not to exceed $70,000 to meet unforeseen emergencies of a confidential character pursuant to section 530C of title 28, United States Code; and expenses for conducting drug education and training programs, including travel and related expenses for participants in such programs and the distribution of items of token value that promote the goals of such programs, $2,331,370,000, of which not to exceed $75,000,000 shall remain available until expended and not to exceed $90,000 shall be available for official reception and representation expenses: Provided , That, notwithstanding section 3672 of Public Law 106–310 , up to $10,000,000 may be used to reimburse States, units of local government, Indian Tribal Governments, other public entities, and multijurisdictional or regional consortia thereof for expenses incurred to clean up and safely dispose of substances associated with clandestine methamphetamine laboratories, conversion and extraction operations, tableting operations, or laboratories and processing operations for fentanyl and fentanyl-related substances which may present a danger to public health or the environment. Bureau of Alcohol, Tobacco, Firearms and Explosives Salaries and Expenses For necessary expenses of the Bureau of Alcohol, Tobacco, Firearms and Explosives, for training of State and local law enforcement agencies with or without reimbursement, including training in connection with the training and acquisition of canines for explosives and fire accelerants detection