English: The Expanded Philippine Science High School (PSHS) System Act (Senate Bill No. 2974), which Gatchalian co-authored and co-sponsored, provides for the establishment of a PSHS System under the administrative supervision of the Department of Science and Technology (DOST). There shall be a maximum of two PSHS campuses in each administrative region of the country except for the National Capital Region (NCR), where the PSHS Main Campus is located. Only one PSHS campus may be established, however, per province.
Filipino: Isa si Gatchalian sa mga may akda at co-sponsor ng Expanded Philippine Science High School System Act (Senate Bill No. 2974), kung saan nakasaad ang pagkakaroon ng PSHS System sa ilalim ng administrative supervision ng Department of Science and Technology (DOST). Sa ilalim ng panukalang batas, hindi lalagpas sa dalawang PSHS campus ang itatayo kada rehiyon maliban sa National Capital Region (NCR), kung saan matatagpuan ang PSHS Main Campus. Ngunit isang PSHS campus lamang ang pahihintulutan kada probinsya.