1 One-party system: a system in which a single political party has the right to form the government, usually based on the existing constitution.  Two-party system: a system where two major political parties dominate politics within a government.
These include the North American Soccer League and the USL Pro league, which are considered division two and division three leagues, respectively. Each league sets its own salary for referees. For example, in the 2007 season, the USL Pro League paid referees $150 a game, plus $25 to $80 in travel expenses.he MLS increases the fee of referees in the final stages of the tournament. Referees in the quarter-finals stage received $2,000 a game. Those who referee in the semifinals were paid $2,800, while referees of the MLS Cup earned $3,500.
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.