http://www.nbpa.com/cba_articles/article-VIII.php
Section 2. Rookie Contracts for Later-Signed First Round Picks.
Except as provided in Section 3 below, a First Round Pick who does not sign with the Team that holds his draft rights for any portion of the three (3) Seasons following the NBA Draft in which he was selected (and who did not play intercollegiate basketball during such period) may enter into either (a) a Rookie Scale Contract in accordance with Section 1 above, or (b) if the Team has Room in excess of the applicable first-year Rookie Scale Amount, a Contract covering no fewer than three (3) Seasons that provides for Salary plus Unlikely Bonuses in the first Salary Cap Year up to the amount of the Team’s Room and increases or decreases in Salary and Unlikely Bonuses in subsequent Salary Cap Years in accordance with Article VII, Section 5(c)(1).


