Section4. The center shall be headed by an executive director who shall be appointed for a term of five (5)years by the President, with the consent of the Commission on Appointments, from among the. members of the faculty of the University of the Philippines and other state colleges and universities. The faculty member appointed as executive director shall, during his service as such, be deemed as on leave from his position as faculty member. Section 5. The center shall organize annually a national conference on indigenous cultural communities and of officers, organizations and academic institutions with functions, activities and/or programs related to these communities. The agenda of the conference shall be the studies of these communities. In addition to recommendations on further studies, the conference shall also make recommendations for policies and programs for indigenous cultural communities. Section 6 . To carry out the purpose of this Act, the sum of Ten Million Pesos (P10,000,000.00) is hereby authorized to be appropriated out of the funds of the National Treasury not otherwise appropriated for the fiscal year two thousand four (2004). Thereafter, such sums as may be necessary shall be included. in. the Annual General Appropriations Act as approved by Congress. Section 7. Should any part, section or provision of this Act be held invalid or unconstitutional, the remainder of the law or the provision not otherwise affected shall remain valid and subsisting.