Each side is allowed 12 substitutions per game.
There are an unlimited number of tackles allowed in Rugby Union and six in Rugby League before the ball is turned over.
3 substitutions are allowed in a FIFA soccer match.
for rugby league it is 13 players and for rugby union it is 15 players
in fútbol, you are allowed three substitutions per 45 minute half
There are 12 substitutions allowed in college volleyball. However, currently there are talks about increasing this number to 15.
In Canada for 16U and below you are allowed 12 limited substitutions above 16U you are allowed 6 limited. In the USA it is typically 15 but sometimes can be 10 unlimited.
You are allowed three substitutions per game.
you are allowed 12 substitutions in a volleyball
7 of which 3 must be in specialist categories i.e. the front row
2 points for a conversion in rugby union