The independent report on the governance of the Olympic Council of Ireland (OCI) is now thought to be complete.
Deloitte conducted the review last month and the findings are due to be discussed by the OCI Executive Board this week.
The report follows alleged unauthorised selling of tickets for the Rio Olympics.
It was confirmed on Tuesday night that John Delaney is leaving his role as vice president of the OCI.
In a statement, Mr Delaney said having given the matter careful consideration, he has made the decision to step down as the FAI's volunteer member of the 13-person OCI committee board, with immediate effect.
"My role as CEO of the FAI is my primary role and priority. I have always been 100% committed to fulfilling my role, my obligations and duties in ensuring the growth and development of football in Ireland, which I will continue to do," he said.
Mr Delaney said that during his time as a member of the OCI executive committee he always looked to the best interests of the Olympic movement, and in recent months he worked extensively with the other OCI committee members to ensure that all proper steps have been taken by the OCI, following the issues that arose in Rio.
"As part of this, I have fully engaged and co-operated with investigations being carried out by Grant Thornton who were appointed to review ticketing arrangements and Deloitte, whose brief is to examine governance issues within the OCI.
"I will, of course, also provide all assistance sought by Mr Justice Carroll Moran as part of the Government appointed inquiry.
"I am fully confident that in due course my position and non-involvement in these matters will be clarified and independently verified on completion of reports carried out by Grant Thornton or Justice Carroll Moran," Mr Delaney said.