Section 2
SEC. 2. The naming of streets, highways, avenues, bridges and public thoroughfares, parks, plazas, sitios, barrios, municipalities, cities, provinces, public schools public buildings, piers, government aircrafts and vessels, and other public institutions and places after living persons, except those made pursuant to existing Acts of Congress, which are still in effect on the date of the approval of this Act, are hereby declared null and void and the proper authorities are hereby directed to make the corresponding changes within six months after the approval of this Act