France v Italy, Saturday 4 Feb 15:30 (local time) – Rob Flockhart (SRU)
Scotland v England, Saturday 17:00 (GMT) – Francis Palmade (FFR)
Ireland v Wales, Sunday 5 Feb 15:00 (GMT) – Achille Reali (FIR)
Ireland u20 v Wales u20, Friday 3 Feb, Athlone, 19:05 (GMT) – Achille Reali (FIR)
Scotland u20 v England u20, Friday, Firhill, Glasgow, 19:30 (GMT) – Francis Palmade (FFR)
France u20 v Italy u20, Friday, Stade Pierre Rajon, Bourgoin, 20:45 (local) – Geraint Edwards (WRU)
Scotland A v England Saxons, Friday, Netherdale, Galashiels, 19:30 (GMT) – Eugene Ryan (IRFU)
Italy v England, Saturday 11 Feb 17:00 (local) – Iain Goodall (SRU)
France v Ireland, Saturday 21:00 (local) – Ray Wilton (WRU)
Wales v Scotland, Sunday 12 Feb 15:00 (GMT) – Eddie Walsh (IRFU)
Italy u20 v England u20, Friday 10 Feb, Rovigo, 19:00 (local) – Paul Minto (SRU)
Wales u20 v Scotland u20, Friday, Parc Eirias, Colwyn Bay, 19:05 (GMT) – Maurizio Vancini (FIR)
France u20 v Ireland u20, Saturday, Stade des Alpes, Grenoble, 15:00 (local) – Ken Pattinson (RFU)
All hearings, as a result of red cards issued or citings, will be conducted before an independent three-man Six Nations Disciplinary Committee chosen from the Six Nations Disciplinary Panel, generally on the Tuesday or Wednesday following the weekend to allow for any appeals to be heard before the next round of matches.
As in previous years random drug testing will take place at RBS 6 Nations Senior, Under 20 and Women's Championship matches plus any "A" internationals being played.
For further information please contact Jon Davis, Tournament & Operations Director email@example.com