The ACT is a standardized test, administered and sponsored by ACT, Inc. It is taken by millions of HS students across the country and overseas. Like the SAT standardized test, it is usually taken in the spring of the junior year and again in the fall of the senior year. The real HS academic “go-getter” students who want to attend UC Universities, Ivy League Colleges and the like, start preparing for the ACT (and the SAT as well) in their HS Freshman or Sophomore years!! Most universities (but not “Community Colleges”) use a student’s ACT and SAT scores as an important part of the college admissions process.