Alain Rolland and Olan Trevor will be the touch judges on the day and the party is completed by former international referee David McHugh who will act as the Television Match Official (TMO).
Munster's quarter final against the Llanelli Scarlets will be officiated by Chris White with Tony Spreadbury and Peter Huckle running the touch lines.
Joel Jutge will take charge of Leinster's game against Wasps and will be joined by touch judges Franck Maciello and Jean-Luc Rebollal.
The line up is completed by Nigel Owens taking charge of the game between Biarritz and Northampton where he will be joined by Hugh Watkins and Huw Griffiths.
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