NFL Collective Bargaining Agreement
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).