Soccer referee

In association football, the referee is the person responsible for enforcing the Laws of the Game during the course of a match. He or she is the final decision-making authority on all facts connected with play, and is the only official on the pitch with the authority to start and stop play and impose disciplinary action against players during a match. At most levels of play the referee is assisted by two assistant referees (formerly known as linesmen), who are empowered to advise the referee in certain situations such as the ball leaving play or infringements of the Laws of the Game occurring out of the view of the referee; however, the assistant referees' decisions are not binding and the referee has authority to overrule an assistant referee. At higher levels of play the referee may also be assisted by a fourth official who supervises the teams' technical areas and assists the referee with administrative tasks.

Referees' remuneration for their services varies between leagues. Many are wholly amateur, some may be paid a small fee or reimbursed for expenses, and, in some countries, a limited number of referees – mainly those officiate in their country's top league – are employed full-time by their national associations and receive a retainer at the start of every season plus match fees.

Referees are licensed and trained by the same national organisations that are members of FIFA. Each national organisation recommends its top officials to FIFA to have the additional honour of being included on the FIFA International Referees List. International games between national teams require FIFA officials. Otherwise, the local national organisation determines the manner of training, ranking and advancement of officials from the youngest youth games through professional matches.

The referee's powers and duties are described by Law 5 of the Laws of the Game. These include:

Powers

Duties

As per Law 9 of the game (Ball in and out of play), if during the game the ball hits the referee (or an assistant) there is no stoppage in play. However the officials would be expected to position themselves such that this would be unlikely to occur.

Modern day referees and their assistants wear a uniform consisting of a jersey, badge, shorts and socks: until the 1950s it was more common for a referee to wear a blazer than a jersey. Traditionally that uniform was almost always all black, unless one of the teams was wearing a very dark jersey in which case the referee would wear another colour of jersey (usually red) to distinguish himself from both teams. At the 1994 World Cup finals, new jerseys were introduced that gave officials a choice of burgundy, yellow or white, and at the same time the creation of the Premier League in England saw referees wear green jerseys: both changes were motivated by television considerations. Since then, most referees have worn either yellow or black, but the colours and styles adopted by individual associations vary greatly. For international contests under the supervision of FIFA, Adidas uniforms are worn because Adidas is the current sponsor. FIFA allows referees to wear five colours: black, red, yellow, green and blue. Along with the jersey, referees are required to wear black shorts, black socks (with white stripes in some cases), and black shoes. The badge, which displays the referee's license level and year of validity, is often affixed to the left chest pocket.

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Wikipedia