College inline hockey most often refers to the American inline hockey competitive governance structure established by the National Collegiate Roller Hockey Association, or NCRHA, though leagues outside of the United States exist. In the NCRHA there are 5 national division, I, II, III, JuCo, and B, each having many member organizations. All divisions have championship tournaments known as the Collegiate Roller Hockey National Championships (formerly known as the National Championship Tournament).
NCRHA Structure
The teams that play in NCRHA college inline hockey are split into divisions and then member organizations, though some teams only play locally instead of nationally.
References
College inline hockey Wikipedia(Text) CC BY-SA