this is to help them be identified and to keep track of them with the referee's association
2 refs 2 linesmen
The NBA refs do have numbers on the shirts for identification purposes so that all the calls that they make can be documented.
4. 2 refs 2 lines
It is to keep the players separate from the refs while they are making a call. If players go into it when refs are making a call they get a penelty
90 refs , 70 linesman..
The officials in hockey are like the refs in American football or soccer. They are the ones on the ice or field the enforce the rules! Typically they're between 2-4 refs on the ice at one time depending on the Level of play!
Four. Two refs and two linesmen.
4 2 refs and 2 linesmen
your question is to general: what do you mean? penalties, or calls the refs make? if i were to post rules i would be posting a whole book
There aren't any NHL rules during the Olympics. The refs use International Hockey rules
It depends on what level of play in the younger hockey games there is usually 2 officials but as you get older there may be 3 or 4The officials are the people whoo act as refs... who are the players?
there are two refs