College hockey is ice hockey played between colleges with their teams composed of enrolled students. College hockey is played in Canada and the United States, though leagues outside of North America exist. In Canada, college hockey refers to community college and small college ice hockey (not university level) that operates under the jurisdiction of the Canadian Colleges Athletic Association (CCAA). It consists of two conferences, being the Alberta Colleges Athletics Conference (ACAC) and the Ontario Colleges Athletic Association (OCAA). In the United States, college hockey refers to ice hockey played between colleges and universities with the competitive governance structure established by the National Collegiate Athletic Association (NCAA). The National Collegiate Athletics Association has conducted national championships for men's ice hockey since 1948, and women's ice hockey since 2001. U.S.