About Two-Pass Approval

Two-Pass Approval is a voting method for electing representatives (individuals, groups, parties).

It processes the approval ballots twice - first it counts the approvals, then it assigns votes.

It works like this (algorithm optimized for hand tallying approval ballots):

• count the approvals, sort the parties from strongest to weakest
• put all ballots into one pile
• for each party P from strongest to weakest
• sort thru the pile and remove the ballots where party P is approved
• the number of ballots removed is the number of votes added to party P
• count the votes
• votes represent the weight of candidate's voice

Two-Pass Approval is a special case of Two-Pass Score.