NFL Collective Bargaining Agreement
Non-Injury Grievance
Section 9Time Limits
Each of the time limits set forth in this Article may be extended by mutual written agreement of the parties involved. If any grievance is not processed or resolved in accordance with the prescribed time limits within any step, unless an extension of time has been mutually agreed upon in writing, either the player, the NFLPA, the Club or the Management Council, as the case may be, after notifying the other party of its intent in writing, may proceed to the next step.