The 1960s were very challenging years for Phi Iota Alpha. The effects of the Vietnam War and the '60s counter-culture created an anti-institutional atmosphere amongst many college students. In addition, this drastically reduced the enrollment of Latin American students in American universities. This in turn hindered potential membership to the organization. As a result, by 1968, after many years of struggle, the only active undergraduate chapters were at LSU, and at RPI. The chapter at RPI became inactive in 1973 with the graduation of its Secretary General. The Secretary General took with him the chapter's official fraternity documents. By 1979, the last active brother from the chapter at LSU graduated, thereby marking the closing of the undergraduate chapter at LSU.