Be it enacted by the Senate and House of Representatives of the Philippines in Congress assembled:

Section 1. Section sixteen of Commonwealth Act Num­bered One hundred and eighty-six, as amended, is hereby further amended as follows:

SEC. 16. Administration of the System.—The System shall be a non-stock corporation, with its principal place of business in Manila or Quezon City, Philippines. It shall be managed by a Board of Trustees to consist of the General Manager of the System and seven other mem­bers to be appointed by the President of the Philippines with the consent of the Commission on Appointments three of whom shall represent three leading confederation of government employee organizations or associations of government employees which represent the cross section of government employees with membership not limited to a particular professional group or class or level of employees or to employees of a single agency or related agencies, but open to all government employees in all branches, departments, agencies, offices, and instrumentalities of the government irrespective of professions, class or level of position, representing the largest number of government employees who are registered members of the associations or of affiliated organizations, as may be determined by the Government Service Insurance System under such rules and regulations as it may promulgate. The trustees shall elect from among themselves a chairman and a vice-chair man. Each appointive trustee, except the General Man­ager who shall cease as trustee upon his separation as General Manager shall held office for three years or un­til his succesor is duly qualified except that, of the four other appointive members of the Board first appointed under this amendatory Act, two shall hold office for two years, and two for three years. At the expiration of the respective terms of such members, a successor shall be appointed for the term of three years, from the date of such expiration. All vacancies, except through the expirations of the terms, shall be filled for the unexpired term only. The trustees shall be entitled to a per diem of twenty-five pesos for each day of actual attendance in session."

SEC. 2. This Act shall take effect upon its approval.

Approved, June 18, 1966.