DM No. 536, s. 2021 – UPDATE ON THE STATUS OF PHILIPPINE NATIONAL PUBLIC KEY INSFRASTRUCTURE (PNPKI) DIGITAL SIGNATURE OF SCHOOL PERSONNEL WHO WILL SERVE IN THE 2022 NATIONAL AND LOCAL ELECTIONS 25 Nov,2021 DO SCM DM-No.-536-s.-2021-UPDATE-ON-THE-STATUS-OF-PHILIPPINE-NATIONAL-PUBLIC-KEY-INSFRASTRUCTURE-PNPKI-DIGITAL-SIGNATURE-OF-SCHOOL-PERSONNEL-WHO-WILL-SERVE-IN-THE-2022-NATIONAL-AND-LOCAL-ELECTIONS.pdf