Students must be enrolled (or have been enrolled) full-time in any U.S. or Canadian college or university at least part of the 12-month period prior to the date the entry is submitted. In the case of a team (maximum of four students), at least one member of the team must meet the full-time eligibility criteria. The other team members must have been enrolled on a part-time basis (at a minimum) sometime during the 24-month period prior to the date the entry is submitted.