The MPSL is affiliated with
FIFA through the U.S. Soccer Federation, the
United States Adult Soccer Association and the
California Soccer Association North (CSAN). All players must be registered for the MPSL through CSAN. The level of play varies between Division 1 and Division 2 from year-to-year because of the annual turnover caused by the large number of graduate and undergraduate students that play in the MPSL. Games are officiated under the
FIFA Laws of the Game using a center referee and two assistant referees. Unlimited substitutions are allowed with the center referee's permission on dead balls. ==Teams in the MPSL==