California Code
ARTICLE 2 - Professional Athletes and Athlete Agents
Section 18897.5.

18897.5. No athlete agent shall negotiate or enter into any postdated agent contract, endorsement contract or professional sports services contract or any agent contract, endorsement contract or professional sports services contract that purports to or takes effect at a future time.

(Added by Stats. 1996, Ch. 857, Sec. 2. Effective January 1, 1997.)