On December 19, 1983, the College of Science of the University of the Philippines was established as a new college. Its first Dean, Dr. Roger Posadas worked for the establishment of the College of Science Library (CSLIB) to provide information support to the faculty, staff and students of the College. The CSLIB was established on June 24, 1987 under U.P. Administrative Order no. 62 (series of 1987).