We refer here from time to time to the NFL’s antitrust exemption.  And yet the NFL has been sued for antitrust in the past by the USFL and by the NFL’s players.

A reader asked us to explain the difference, and we didn’t know.  So we asked.

NFL spokesman Greg Aiello helped clear things up for us.

“There are antitrust exemptions contained in two pieces of federal legislation passed by Congress in the 1960s,” Aiello said via e-mail.  “One  allows the NFL to negotiate national television contracts for all 32 teams and to regionalize broadcasts.  The other protects the league from antitrust lawsuits related to the NFL-AFL merger of 1970.”

There’s a separate set of antitrust protections under the Collective Bargaining Agreement, for as long as the CBA is in effect.  Upon expiration of the CBA, there’s a chance that trouble will arise in that regard, as it did when a group of players led by Reggie White sued after the 1987 strike, culminating in the current free agency and salary cap system.

“Regarding the federal legislation, the 1961 Sports Broadcasting Act allows sports leagues to package their games into one or more TV packages and to regionalize telecasts,” Aiello added.  “In 1966, Congress approved the NFL-AFL merger — shielding it from being challenged in court on antitrust grounds — because it was in the public interest in terms of maintaining franchise stability and because the merged league also was committed to expansion.”

So there you have it.  There are three antitrust exemptions, only one of which currently has any relevance.

It’s actually kind of simple.