NFL Collective Bargaining Agreement

Article 36
Moving and Travel Expenses

Section 4(b)
Transportation

Each player who is traded or claimed during the preseason or regular season will by the fastest available means of transportation report to the Club to which he is traded or by which he is claimed. Any veteran player who is traded or claimed during the preseason or regular season or any rookie player who is traded or claimed after the start of the regular season will receive first class air fare. All other players will be furnished coach air fare.

(b)

Any rookie player who is traded or claimed after the start of the regular season, subsequently makes the Active List of the Club to which he is traded or by which he is claimed, and takes up permanent residence in the city of the Club to which he is traded or by which he is claimed before the first regular season game of the subsequent season.