NCAA Recruiting rules are complicated and can be confusing for a prospect.  Recent rule changes are often misinterpreted by prospect and their parents.  Recruiting rules are different for different sports and are different for D I, D II and D III programs.   The following chart gives a good  outline of the rules that apply during the sophomore, junior and senior year for all sports.  Rowing is considered “Other sports” on the chart.

http://www.ncaa.org/sites/default/files/Division%20I%20Recruiting%20Overview%20Chart2014.pdf