Section 9
SEC. 9. A new paragraph is hereby added after subsection (a) of Section twenty-eight of the same Act, as amended, which shall read as follows: Republic Act Numbered One thousand five hundred and sixty-eight, as amended, and Republic Act Numbered Three thousand and sixteen are also hereby declared inoperative or abolished; Provided, That the rights of those already retired thereunder shall not be affected; And provided, further, That an official or person who is eligible for retirement under any of the aforementioned acts or any other acts may elect and reserve his right to retire thereunder and shall be entitled to the retirement benefit described therein only if he so chooses and notifies the System in writing within one year from the date of approval of this amendatory Act, otherwise it shall be deemed that he elects to be retired under this Act."