A bill to amend the Northern Ireland Civil Service (NICS) pension scheme passed its final stage, on 19 November 2012.
Finance Minister Sammy Wilson explained that currently the terms of compensation for the NICS scheme remained more generous "than those in operation in the home civil service scheme".
"Failure to maintain parity with Great Britain and realign the two schemes will exert an unjustifiable pressure on public expenditure here in Northern Ireland," he said.
The NICS pension scheme was a statutory pension provision that was established by the Superannuation (Northern Ireland) Order 1972.
When the Superannuation Bill becomes law, the 1972 Order would be amended to remove the need for trade union consent.
Finance committee chairman Daithi McKay said members had been mindful that the removal of consent was "always going to be a contentious issue".
He said engagement between management and trade unions would offer a compromise and an agreement on the nuances to the timing and substance of any compensation scheme changes.
The Water and Sewerage Services (Amendment) Bill also passed its first stage.