In 1950, the First SCA Leadership Conference was held in Baguio. Two years after, it was mandated by the Philippine Hierarchy as member of the Catholic Action of the Philippines. Then the SCA affiliated with the Pax Romana International Movement of Catholic Students in 1955. It affiliated with the International Young Catholic Students (IYCS) the next year. Leadership Training Schools ere initiated by Fr. Michael Nolan, SSC in 1957. The movement hosted the Pax Romana International Conference held in Manila from December 26, 1960 to January 9, 1961. It was participated in by more than 44 countries all over the world. The First SCA National Congress was convened in Iloilo from May 24 to 29, 1962.