How much is the football referee there are three referees in each game

Football rules
There are three referees in each game, and one chief referee is responsible for implementing the rules and mastering the game and timing; Two sideline referees are in charge of one sideline respectively. When the ball or the ball holder goes out of bounds, he raises a flag to signal to the referee. American football players must wear prescribed clothing and protective equipment, so it is also called hard footballWhat are the duties of the football referee
The rules of the game include the passing receiver, including the legitimate interference of receiving or passing the ball; Assist the running players who cover the attack, including the blocking cry formed by teammates and defenders, and quickly return to play the hanging ball; Together with the backcourt referee, it is necessary to stipulate whether the goal scoring on the field is effectiveLittle brother, I want to ask where to sign up for the referee qualification of NFL Chinese college student waist flag football? When
I also want to sign up, brother. Did you sign up successfully
Football rules
Referee: there are three referees in each game, and one chief referee is responsible for implementing the rules and mastering the game and timing; Two sideline referees are in charge of one sideline respectively. When the ball or the ball holder goes out of bounds, he raises a flag to signal to the referee. Time: it takes 80 minutes to play an English football game, with only two halvesWhat qualifications are required for football referee certificates
Football referee certificate requires a college degree or aboveWhat rights do football referees have
7. The referee should consider not only the safety of players and officials, but also the audience. 8. If there is an emergency in the audience (such as entering the venue or throwing debris into the venue, etc.), the referee should immediately notify the relevant organizations, including the League Congress. Under appropriate circumstances, the Congress may intervene in the competition to maintain safetyHow to get the first-class football certificate
（2） Practical examination: practice competition for referee. Entry conditions (1) love football, have a decent ideological style, strong professionalism, good health and high professional ethics; （2） Those who apply for the first-class football referee must be 18-50 years oldHow many levels of touch football referees are there
Touch football referees are divided into three levels. The technical level of referees is divided into national level, first level, second level and third level. Some excellent national referees can be awarded the title of international referee of a single sport after being recommended and examined and approved by the international sports organizationFootball rules
Referee: there are three referees in each game, and one chief referee is responsible for implementing the rules and mastering the game and timing; Two sideline referees are responsible for raising the flag when the ball or the holder goes out of bounds. Athletes: each team has 15 players, including 8 forwards and 7 defenders. Game length: a football game usually takes 80 minutesFootball rules
The ball is oval and looks like an olive. It is 11-11 inches (27.94-29.21 cm) long, 30-31 inches (76.2-78.7 cm) long in longitudinal circumference, 24-25 inches (60.96-64.77 cm) long in transverse circumference, and weighs 13-15 ounces (382.72-425.24 g)