NFL Collective Bargaining Agreement

Article 23
Preseason Training Camps

Section 6(d)
Five-Day On-Field Acclimation Period

(d)

The foregoing rules shall also apply to players who join a Club’s roster or who receive medical clearance to practice before, during, or after the conclusion of the five-day acclimation period for veteran players who reported on the mandatory reporting date for veteran players (July 29 in the above example).