House Republican Leader Tom Cross of Oswego sponsored the measure, which passed Tuesday. It will prohibit public employees from collecting both union and public pensions. It stems from a controversy earlier this year when two union lobbyists qualified for teachers' retirement benefits by spending a single day in the classroom.

Quinn encouraged the legislature to pass the measure. It also will require any suspicion of fraud to be reported to local prosecutors. The legislation will go into effect immediately if signed by the governor.