Section 4
SEC. 4. Officers and enlisted personnel in the active service shall contribute to the System an amount equivalent to four percent (») of their monthly base and longevity pay, which contribution shall be deducted from their pay from the Armed Forces of the Philippines and paid to the System: Provided, however. That any officer or enlisted person who is due for compulsory retirement or is optionally retirable and actually elects to retire within one year from the approval of this Act, shall no longer be required to contribute to the System: Provided, further, That any officer or enlisted person who is separated through no fault of his own and is not eligible for either retirement or separation benefits shall, upon his separation, be refunded in one lump sum all his actual contributions to the System plus interest at the rate of four percent (4%).