Professional Referee Organization
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| Founded | November 2012 |
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| Headquarters | 420 Fifth Avenue 7th Floor New York, NY 10018 |
Area served | United States and Canada |
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| Website | www |
Professional Referee Organization (PRO) is the organization responsible for managing the referee and assistant referee program in professional soccer leagues in the United States and Canada, working alongside the United States Soccer Federation, Major League Soccer, the Canadian Soccer Association, the United Soccer League, the National Women's Soccer League, MLS Next Pro, and the U.S. Open Cup.
The organization's targets are to increase the quality of officiating in U.S. and Canadian professional leagues, develop more professional-quality officials at a younger age, and produce officials who will represent the United States and Canada in FIFA competitions.
The PRO senior match officials primarily referee in Major League Soccer. The PRO2 officials primarily referee in the USL, NWSL, and MLS Next Pro.