Section 5. Longevity Pay. —

Uniformed members of the Integrated National Police in the active service shall receive, in addition to their monthly base pay, longevity pay equivalent to ten per centum of their monthly base pay prescribed for the grade for each five years of satisfactory, faithful and efficient service heretofore or hereafter rendered as officer, non-officer and/or cadet of the Integrated National Police, such additional pay to be compounded every five years: Provided, That the total amount of longevity pay shall not exceed fifty per centum of the uniformed members' monthly base pay as prescribed by law; Provided, further, That services as cadet in the Philippine National Police Academy shall be limited to a maximum of two years only regardless of length of stay in the Academy; Provided, furthermore, That nothing in this section shall be construed as authorizing the payment of any back longevity pay for any period of service heretofore rendered.