“The leading college admissions test that measures what you learn in high school to determine your academic readiness for university. The ACT is an admissions exam used by universities to evaluate undergraduate applicants. All four-year universities in the US, and more than 200 universities outside of the US, accept and value the ACT.”

https://global.act.org/content/global/en/products-and-services/the-act-non-us.html