; and for expenses of attendance at meetings that relate to the functions or activities of the Indian Health Service: Provided , That in accordance with the provisions of the Indian Health Care Improvement Act, non-Indian patients may be extended health care at all tribally administered or Indian Health Service facilities, subject to charges, and the proceeds along with funds recovered under the Federal Medical Care Recovery Act ( 42 U.S.C. 2651–2653 ) shall be credited to the account of the facility providing the service and shall be available without fiscal year limitation: Provided further , That notwithstanding any other law or regulation, funds transferred from the Department of Housing and Urban Development to the Indian Health Service shall be administered under Public Law 86–121 , the Indian Sanitation Facilities Act and Public Law 93–638 : Provided further , That funds appropriated to the Indian Health Service in this Act, except those used for administrative and program direction purposes, shall not be subject to limitations directed at curtailing Federal travel and transportation: Provided further , That none of the funds made available to the Indian Health Service in this Act shall be used for any assessments or charges by the Department of Health and Human Services unless identified in the budget justification and provided in this Act, or approved by the House and Senate Committees on Appropriations through the reprogramming process: Provided further , That notwithstanding any other provision of law, funds previously or herein made available to a tribe or tribal organization through a contract, grant, or agreement authorized by title I or title V of the Indian Self-Determination and Education Assistance Act of 1975 ( 25 U.S.C. 5321 et seq. (title I), 5381 et seq. (title V)), may be deobligated and reobligated to a self-determination contract under title I, or a self-governance agreement under title V of such Act and thereafter shall remain available to the tribe or tribal organization without fiscal