Section 4
SEC. 4. A retiring justice, judge of a court of record, or a city or municipal judge who is entitled to the benefits of any prior retirement gratuity Act shall have the option to choose between the benefits in such Act and those herein provided for, and in such case he shall be entitled only to the benefits so chosen: Provided however, That a justice, judge of a court of record, or a, city or municipal judge retired under any prior retirement Act and who is thereafter appointed to the Supreme Court, or to the Court of Appeals, or to the Court of First Instance, Industrial Relations, Agrarian Relation, Tax Appeals, or Juvenile and Domestic Relations, as the case may be, shall be entitled to the benefits of this Act on condition that in case he has not fully refunded to the Government the gratuity previously received by him, there shall be deducted from the amount payable to him under this Act such monthly installments as are required in Section six of Act Numbered Four thousand and fifty-one, as amended, until the gratuity already received by him shall have Been refunded in full. "SEC. 5. The Government Service Insurance System shall take charge of the enforcement and operation of this Act, and no justice of the Supreme Court, of the Court of Appeals, or judge of the Court of First Instance, Industrial Relations, Agrarian Relations, Tax Appeals, Juvenile and Domestic Relations, or city municipal judge shall be entitled to receive any gratuity or pension herein provided for unless from the month following the approval of this Act, in case of an actual incumbent, or from the month following his appointment and qualification as such, in case of a future appointment, he shall have contributed to the funds of the System by paying a monthly premium in accordance with the following rates, which fund shall also be made available for the payment of the benefits of this Act: Officials Rate per month Municipal judges………………….P40.00 All others………………………….P100.00"