; (3) obligated balances in 80X0110 shall be transferred to and merged with 80–0130, Construction and Environmental Compliance and Restoration, and any upward adjustments to said obligations may be made from 80–0130; and (4) obligated balances in 80X0112 shall be transferred to and merged with 80–0122, Safety, Security and Mission Services and 80–0130, Construction and Environmental Compliance and Restoration, and any upward adjustments to such obligations may be made from 80–0122 and 80–0130. (c) Following the cancellation of unobligated balances and transfer of obligated balances in 80X0114, 80X0111, 80X0110 and 80X0112, such accounts shall be closed. Any collections authorized or required to be credited to these accounts that are not received before closing of such accounts shall be deposited in the Treasury as miscellaneous receipts. 525. None of the funds made available in this Act may be used to purchase first class or premium airline travel in contravention of sections 301–10.122 through 301–10.124 of title 41 of the Code of Federal Regulations. 526. None of the funds made available in this Act may be used to send or otherwise pay for the attendance of more than 50 employees from a Federal department or agency, who are stationed in the United States, at any single conference occurring outside the United States unless such conference is a law enforcement training or operational conference for law enforcement personnel and the majority of Federal employees in attendance are law enforcement personnel stationed outside the United States. 527. None of the funds appropriated or otherwise made available in this Act may be used to transfer, release, or assist in the transfer or release to or within the United States, its territories, or possessions Khalid Sheikh Mohammed or any other detainee who— (1) is not a United States citizen or a member of the Armed Forces of the United States