Cricket Australia has reluctantly agreed to support the nomination of New Zealand Cricket chairman Alan Isaac to the ICC's vice-president role, launching a withering attack on cricket's governing body for refusing to ratify their own nominee, former Prime Minister John Howard.

CA and NZC originally agreed to jointly nominate Howard, who was subsequently rebuffed by six of the 10 Test playing nations.

With Howard being stonewalled by the ICC and no reason forthcoming for the snub, CA has elected not to suggest another name for the role.

The CA board released a statement on Friday outlining their position, expressing its disappointment.

"The board is disappointed and most concerned by the ICC Executive Board's lack of support of (Howard's) nomination and regards it as completely unacceptable that no reason has been provided as to why he has not been accepted."

"In the circumstances, the CA Board is not prepared to nominate any other candidate for the role."

Isaac is not even New Zealand's preferred candidate. That honour belongs to Sir John Anderson, who was initially overlooked in favour of Howard and declined to reapply when approached by NZC in the frantic search for a replacement.

Chairman Jack Clarke said the CA Board remained disappointed at the shabby treatment afforded to Howard, who was initially requested to consider the role at CA's invitation.

"We still have been given no official reason why a strongly-credentialed candidate of Mr Howard’s qualification’s, skill and stature was not supported," he said.

"Our Directors were today very strongly of the view that Mr Howard continues to be the best candidate CA could nominate."

"We are not prepared to suggest another candidate but given it is clear Mr Howard will not be supported, we clearly have to consider a new approach."

"Accordingly, we are pleased to support New Zealand Cricket’s suggestion that Alan Isaac be nominated for the role."

The trans-Tasman neighbours were asked to put forward a candidate for the vice-presidency as part of the ICC's rotational nomination process. The successful nominee will serve as ICC vice president for two years before taking over the top job.