GOVERNMENT ministers are pressing ahead with plans for all-postal voting at elections across Yorkshire.
MPs voted by 269 to 166 to overturn a bid by the House of Lords to axe the region from an experiment.
But time is running out for the pilot scheme to be law by May.
If peers continue their defiance, ministers face having to compromise or lose the whole package.
The House of Lords is expected to consider the changes again a week today.
Ministers want all-postal voting in four parts of England at key council and European Union elections on June 10.
Yorkshire, the North-West, the North-East and the East Midlands were chosen for the move, which could spell the end for the traditional ballot box.
Peers blocked the scheme for Yorkshire and the North-West, saying the Electoral Commission was against the regions being included.
But in the Commons debate Constitutional Affairs Minister Christopher Leslie said: "The commission always said it was up to the Government how many regions it wanted to pilot."
Earlier, Tory Phil Hammond said the Government was over-riding the commission's opinion over the number of all- postal pilots.
Fellow Tory Peter Viggers said the commission was concerned about the number of pilot regions.