payments made out of its moneys are correctly made and properly authorized, and that adequate control is maintained over the assets of, or in the custody of, the Commission and the expenditures it may incur. The Commission shall be subject to audit by COA. Sec. 19. Civil Service Law Coverage for Employees. The hiring, appointment, employment, promotion, disciplinary control, separation, and other terms and conditions of the service of all employees of the Commission and such other matter affecting its employees shall be consistent with the provisions of the Civil Service Law, rules and regulations. Sec. 20. GSIS Coverage for Employees. All employees of the Commission shall be deemed members of the Government Service Insurance System and shall enjoy all benefits of the said system. Sec. 21. Transitory Provisions. Upon the creation of the Commission, the OMA shall cease to operate. All the powers, functions, assets, liabilities, capital, accounts, contracts equipment, and facilities of the OMA shall be transferred to the Commission. During the transition period which begins upon approval of this Act the President may appoint the incumbent Executive Director of the OMA as ex-officio Chairman of the Commission until the Chairman of the Commission shall have been appoint-d, All regular or permanent employees can be absorbed or transformed to the Commission, provided they possess the necessary qualifications, and shall not suffer any loss of seniority or rank or decrease in emoluments. The Chairman shall recommend to the Commission an organizational plan that includes programming direction, budget, organizational plan and structure, a staffing pattern and compensation plan within ninety (90) days from the effectivity of this Act. Said organizational structure shall be implemented by the chairman within thirty (30) days after its approval by the commission. Sec. 22. Periodic Performance Evaluation. The Chairman is hereby required to formulate and enforce a system of measuring and evaluating periodically and objectively the performance of the Commission and submit the same annually to the President. Sec. 23. Separability Clause. If, for any reason, any section or provision of this Act is declared unconstitutional or invalid, the other section or provisions hereof, which are not affected thereby shall continue in full force and effect. Sec. 24. Repealing Clause. All acts, decrees, orders, executive orders, instructions, rules and regulations or parts thereof inconsistent with the provisions of this Act hereby repealed or modified accordingly. Sec. 25. Effectivity Clause. This Act shall take effect fifteen (15) days after its publication in two (2) national newspapers or general circulation. Approved,