Under the CBA, a player may withdraw his name from consideration from the draft at any time before the final declaration date, which is 10 days before the draft. However, the NCAA adopted a rule that took effect in August 2009 that requires players at its member institutions to withdraw no later than May 8 to retain their college eligibility; the first draft affected by this rule was the 2010 draft. In 2011, the NCAA further shortened its timeline for players to withdraw and retain eligibility; the deadline now falls one day before the start of the spring signing period for men's basketball, which occurs in April, this year April 16. Most of that is cut and pasted. I believe anyone who declares between April 16 and April 25, the last day to declare per the NBA CBA, will automatically lose all eligibility.