Serial infringers beware, players who receive three yellow cards will have to front the judiciary.
IRB legal executive Susan Ahern yesterday outlined the judicial process for the tournament.
"It will be an independent process executed by independent personnel," she said.
Players who accumulate yellow cards will not necessarily receive a sanction, unlike the soccer World Cup, where a player misses a match once a threshold is crossed.
All yellow cards will be wiped once the knockout phase begins.