The two resolutions which MEPs will vote on today - unless a compromise resolves the crisis between the parliament and the Commission - are not legally binding but would be politically damaging.
The motions can be adopted, or rejected, by a simple majority vote.
The first calls upon the French Commissioner, Ms Edith Cresson, to be dismissed and for the Commission to "consider" the position of Spain's Mr Manuel Marin. It was tabled by the Christian Democrats, the Liberals (headed by Pat Cox) and Green groups, who total 278 out of the assembly's 626 deputies. However, some 100 Christian Democrat members have withdrawn their support. Fine Gael MEPs are part of the Christian Democrat-dominated grouping, which is also known as the European People's Party.
To have a chance of being adopted, the resolution would need support from the Parliament's 37 unaffiliated members and the 35-strong Union for Europe, which is dominated by French Gaullists, and included Fianna Fail MEPs.
The alternative resolution does not name individual Commissioners but simply asks for an inquiry into fraud. This resolution says Commissioners found guilty of misconduct should then be sent before the European Court of Justice for removal from office.
The resolution has been drawn up by the 214-strong Socialist group (which includes the Labour Party) and Radical Alliance and United Left groupings, totalling 54 members.
The Commission will be given a chance to respond to the results of the two votes, followed by short debate and final vote.
A full censure motion, calling for all 20 members of the Commission to be sacked, would require to succeed a so-called double majority of two-thirds of votes, cast representing a simple majority of the assembly's 626 members.