Retirement Benefits.
Section 18
SEC. 18. Retirement Benefits. — Monthly retirement pay of officer and non-officers shall be fifty percent (50%) of base pay and longevity pay of the next higher grade last held in case of twenty (20) years of active service, increasing by two and one-half percent (2 ½%) for every year of service rendered beyond twenty (20) years to a maximum of ninety percent (90%) for thirty-six (36) years of active service and over. The retirement benefits of non-uniformed personnel shall be governed by Civil Service/Government Service Insurance System Law.