Section 4
SEC. 4. If an officer or employee separated or retired under the provisions of this Act is entitled to the benefits of Act Numbered Twenty-five hundred and eighty-nine, as amended, or to the benefits of any law or special pension fund created by authority of the Philippine Legislature, such as the Teachers' Retirement and Disability Fund by virtue of Act Numbered Three thousand and fifty, as amended, and the Pension and Retirement Fund of the Philippine Health Service under Act Numbered Thirty-one hundred and seventy-three, he shall have the privilege to choose between the benefits prescribed in said Acts and those herein provided for; but in no case shall the payment of gratuity under more than one Act be authorized. If he chooses the benefits granted by the special pension or retirement Act, he shall be retired under the provisions of said Act if he is entitled to its benefits; in case he prefers the gratuity provided for in this Act, he shall be granted such gratuity, and the amounts deducted from his salary as contributions to the Teachers' Retirement and Disability Fund or the Pension and Retirement Fund of the Philippine Health Service, as the case may be, shall be refunded to him, and in the case of the Teachers' Retirement and Disability Fund, said fund shall also return to the general funds of the Insular Government the corresponding direct contributions made to said special fund by the Insular Government.