NFL Collective Bargaining Agreement

Article 13
Salary Cap Accounting Rules

Section 8(c)
Renegotiations and Extensions

(c)

Any agreement to compensate a player at the minimum amount set forth in Article 21 for participation in an offseason workout program or classroom instruction shall not be treated as a renegotiation of a Player Contract. Any agreement to compensate a player for such participation above such amount shall be treated as a renegotiation. All such agreements shall be set forth in writing and promptly filed with the League Office.