CBO

[Sonny]

Anyone have any old mechanics slides for games involving 4 officials (3 plus CBO)? What are the specific responsibilities for a CBO?

[Champ]

24.2 The CBO shall:

i) check the substitution of players going onto and off the field of play;
ii) check that each team has the correct number of players on the field of play;
iii) where there is only one referee on the field of play, check that each team obeys the off-side rule; where there is more than one referee on the field of play, assist the referees in checking that each team obeys the off-side rule;
iv) check that no illegal stick exchange occurs;
v) check that no illegal actions are carried out by a coach or official member of either squad;
vi) check that no foul is committed by a player or substitute who is in the act of leaving the field of play or in the act of entering the field of play, or who is in the bench area, the special substitution area or the penalty box.

http://www.users.mwfree.net/~laxref/Pages/EngRules4.html

More info available at that site.