What outside assistance is prohibited?
Substitutions and time-outs · Rule 10.15
Electrical assistance may not be used to direct or communicate with players during a game, apart from communication by competition officials. The capsize rule also addresses illegal outside help and interference.
How it works
Electrical assistance may not be used to direct or communicate with players during a game, apart from communication by competition officials. The capsize rule also addresses illegal outside help and interference. Competition officials' communications are the stated exception.
In a game
A team cannot use an electronic device to guide players on the pitch.
Remember
Competition officials' communications are the stated exception.