ICC has announced the list of officials for the group stages of T20 World Cup starting September 18, 2012.

Match Referees
Ranjan Madugalle (Sri Lanka)
Jeff Crowe (New Zealand)
Graeme La Brooy (Sri Lanka) – For two matches of men world Cup and then will officiate women’s group stage matches.

On-Field Umpires
Billy Bowden
Aleem Dar
Steve Davis
Kumar Dharmasena
Marais Erasmus
Ian Gould
Tony Hill
Richard Kettleborough
Nigel Llong
Asad Rauf
Simon Taufel
Rod Tucker.