The fate of Twenty20 World Cup matches if players test Covid positive will be decided by a committee and not by the member boards, the global governing body said Sunday.
T20 cricket's showpiece events begins October 17 in the United Arab Emirates and Oman with the International Cricket Council hoping for a smooth tournament amid coronavirus concerns.
"We have a committee set up to look at any cases that arise during the event and they will look at identifying close contacts and taking decisions around future events," Allardice told a virtual news conference
"Any decisions around matches will be taken by that committee and it's not going to be something that's going to be dealt with by the members as it may do in bilateral cricket."
The 16 nations at the World Cup will be confined to their hotels for the majority of the month-long tournament.
Allardice also played down Afghanistan's participation with spotlight on the war-torn nation due to the recent takeover of Taliban.
"When the change of regime took place in Afghanistan in August, we have been in regular touch with the Afghanistan Cricket Board," said Allardice.
"The ICC board will consider it when they next meet which is looking like the end of the T20 World Cup."
Meanwhile the decision review system will be used for the first time in a T20 World Cup and Allardice said there will be two reviews in each innings.