The National Labor Relations Board (NLRB) director of the agency's Region 31 office issued a finding of merit in an unfair labor practice charge brought by the student athletes against USC, the National Collegiate Athletic Association (NCAA) and the Pac-12 athletic conference.
The parties to the case were informed of the decision on Thursday, according to NLRB spokesperson Kayla Blado.
read moreA separate case filed by college athletes in Indianapolis against the NCAA and others has been held in abeyance pending the outcome of the USC case.
The judge's ruling could then be appealed to the full NLRB, which would render a decision as to whether USC, NCAA and Pac-12 are employers under labor law, and could order its own remedies.
The National College Players Association, which brought the charges on behalf of 113 USC athletes, also could not be reached for comment.