SANZAR has announced the match officials for Rounds 4-8, which takes the competitions to 6 April 2013.

Highlanders vs Hurricanes at Forsyth Barr Stadium, Dunedin
Referee: Francisco Pastrana (Argentina)
Assistant referees: Mike Fraser (New Zealand), Kane McBride (New Zealand)
Television match official: Vinny Munro (New Zealand)

Waratahs vs Cheetahs at Allianz Stadium, Sydney
Referee: Garratt Williamson (New Zealand)
Assistant referees: Andrew Lees (Australia), James Leckie (Australia)
Television match official: Matt Goddard (Australia)

Southern Kings vs Chiefs at Nelson Mandela Stadium
Referee: Stuart Berry (South Africa)
Assistant referees: Jason Jaftha (South Africa), Christie du Preez (South Africa)
Television match official: Johann Meuwessen (South Africa)

Crusaders vs Bulls at AMI Stadium, Christchurch
Referee: Chris Pollock (New Zealand)
Assistant referees: Nick Briant (New Zealand), Kane McBride (New Zealand)
Television match official: Vinny Munro (New Zealand)

Reds vs Force at Suncorp Stadium, Brisbane
Referee: Angus Gardner (Australia)
Assistant referees: Rohan Hoffman (Australia), Matt O'Brien (Australia)
Television match official: Steve Leszczynski (Australia)

The Sharks vs Brumbies at Kings Park
Referee: Jonathan Kaplan (South Africa)
Assistant referees: Quinton Immelman (South Africa), Reuben Rossouw (South Africa)
Television match official: Deon van Blommestein (South Africa)

Chiefs vs Highlanders at Waikato Stadium
Referee: Jonathon White (New Zealand)
Assistant referees: Nick Briant (New Zealand), Sheldon Eden-Whaitiri (New Zealand)
Television match official: Ben Skeen (New Zealand)

Crusaders vs Kings at AMI Stadium
Referee: Rohan Hoffman (Australia)
Assistant referees: Mike Fraser (New Zealand), Kane McBride (New Zealand)
Television match official: Keith Brown (New Zealand)

Reds vs Bulls at Suncorp Stadium
Referee: James Leckie (Australia)
Assistant referees: Andrew Lees (Australia), Damien Mitchelmore (Australia)
Television match official: Steve Leszczynski (Australia)

Force vs Cheetahs at NIB Stadium
Referee: Garratt Williamson (New Zealand)
Assistant referees: Angus Gardner (Australia), Ian Smith (Australia)
Television match official: George Ayoub (Australia)

Sharks vs Rebels at Kings Park
Referee: Lourens van der Merwe (South Africa)
Assistant referees: Jaco Peyper (South Africa), Reuben Rossouw (South Africa)
Television match official: Shaun Veldsman (South Africa)

Stormers vs Brumbies at Newlands
Referee: Glen Jackson (New Zealand)
Assistant referees: Jonathan Kaplan (South Africa), Marc van Zyl (South Africa)
Television match official: Deon van Blommestein (South Africa)

Waratahs vs Blues at Allianz Stadium
Referee: Francisco Pastrana (Argentina)
Assistant referees: Steve Walsh (Australia), Will Houston (Australia)
Television match official: Peter Marshall (Australia)

Highlanders vs Reds at Forsyth Barr Stadium
Referee: Jaco Peyper (South Africa)
Assistant referees: Mike Fraser (New Zealand), Sheldon Eden-Whaitiri (New Zealand)
Television match official: Vinny Munro (New Zealand)

Hurricanes vs Kings at Westpac Stadium
Referee: Nick Briant (New Zealand)
Assistant referees: Garratt Williamson (New Zealand), Mike Fraser (New Zealand)
Television match official: Vinny Munro (New Zealand)

Chiefs vs Blues at Bay Park Stadium, Mount Maunganui
Referee: Jonathan Kaplan (South Africa)
Assistant referees: Chris Pollock (New Zealand), Shane McDermott (New Zealand)
Television match official: Ben Skeen (New Zealand)

Brumbies vs Bulls at Canberra Stadium
Referee: Jonathon White
Assistant referees: Angus Gardner (Australia), Rohan Hoffman (Australia)
Television match official: Matt Goddard (Australia)

Cheetahs vs Rebels at Free State Stadium
Referee: Glen Jackson (New Zealand)
Assistant referees: Lourens van der Merwe (South Africa), Stefan Breytenbach (South Africa)
Television match official: Johan Greeff (South Africa)

Stormers vs Crusaders at Newlands
Referee: Referee: Craig Joubert (South Africa)
Assistant referees: Stuart Berry (South Africa), Linston Manuel (South Africa)
Television match official: Shaun Veldsman (South Africa)

Waratahs vs Force at Allianz Stadium
Referee: Steve Walsh (Australia)
Assistant referees: Andrew Lees (Australia), James Leckie (Australia)
Television match official: Peter Marshall (Australia)

Blues vs Highlanders at Eden Park
Referee: Steve Walsh (Australia)
Assistant referees: Jonathon White (New Zealand), Sheldon Eden-Whaitiri (New Zealand)
Television match official: Ben Skeen (New Zealand)

Brumbies vs Kings at Canberra Stadium
Referee: Jaco Peyper (South Africa)
Assistant referees: Angus Gardner (Australia), Rohan Hoffman (Australia)
Television match official: George Ayoub (Australia)

Sharks vs Crusaders at Kings Park
Referee: Lourens van der Merwe (South Africa)
Assistant referees: Marius Jonker (South Africa), Reuben Rossouw (South Africa)
Television match official: Deon van Blommestein (South Africa)

Hurricanes vs Waratahs at Westpac Stadium
Referee: Jonathan Kaplan (South Africa)
Assistant referees: Nick Briant (New Zealand), Kade McBride (New Zealand)
Television match official: Glenn Newman (New Zealand)

Force vs Rebels at NIB Stadium
Referee: Mike Fraser (New Zealand)
Assistant referees: Andrew Lees (Australia), James Leckie (Australia)
Television match official: Matt Goddard (Australia)

Cheetahs vs Stormers at Free State Stadium
Referee: Stuart Berry (South Africa)
Assistant referees: Sindile Mayende (South Africa), Francois de Bruin (South Africa)
Television match official: Gerrie Coetzee (South Africa)