DENVER -- A bill telling election officials to use paper ballots this year instead of electronic voting machines is starting through the Legislature.

But a state Senate committee has postponed voting on the measure until Wednesday, when they can find out how much it might cost.

Secretary of State Mike Coffman decertified most of the state's electronic voting and ballot-counting machines in December because of security and accuracy concerns. Many have since been cleared for use, with restrictions.

Legislative leaders and the governor have endorsed using paper ballots this year while the voting machine problems are sorted out.

But some counties have switched entirely to computerized voting machines and say they don't have enough scanners to count all the paper ballots that would be cast.

County clerks from across the state stood in opposition to the bill Monday, saying it would cost up to $15 million.