Since 1914, the Department of Justice and the Federal Trade Commission have shared enforcement of the antitrust laws. Only the Justice Department can prosecute criminal cases against corporate violators of these laws.
NBA Referees. According to TheRichest.org, NBA referees earn an average salary between $100,000 and $300,000 annually as of 2011. Since NBA referees are full-time referees and work 82 games during the regular season, they earn approximately $3,300 per game. Per diem expenses for food and travel expenses are paid by the league.
NFL referees are not full-time officials, and are restricted to making less than 50% of their annual earnings from refereeing NFL games. However, many of the NFL referees are professionals making much more than $100,000 per year from their day jobs, so they are very well paid part-time officials. On the other hand, MLS soccer referees make only $500 to $800 per game, for maybe 24 games per year, and Assistant Referees make a lot less.