The Fianna Fáil leader is promising "swift and comprehensive" action against anyone named in the Mahon Tribunal report as having abused their position in office.
His comments can be seen as meaning that action will be taken against former Taoiseach Bertie Ahern if the tribunal finds against him.
Opening his first Ard Fheis as leader tonight, Mr Martin pledged party supporters will never again be let down by low standards.
In his first major speech to the party faithful, Micheál Martin says he understands the anger of members of the party when Fianna Fáil is brought into disrepute by people's personal behaviour.
He says he's determined that those who belong to and support Fianna Fáil will never again be let down by low standards.
He's promising the strongest ethics rules in Irish politics and anyone who wants to stand for Fianna Fáil in an election will have to go through a new level of transparency.
And he says when the final report of the Mahon Tribunal is published the party will act without fear or favour against anyone who is shown to have abused their position in Fianna Fáil or elected office.
And that action he says will be swift and comprehensive.