Definitions for "Optional Preferential Voting"
The voting system used in the ACT in which an elector shows by numbers his/her preference for individual candidates but does not need to show a preference for all candidates listed for the vote to be formal.
The process of voting in which electors have a choice of whether to mark a second or further preferences for other candidates, as well as their first preference (see also Preferential voting).
A modification of the preferential voting system (which normally requires the sequential numbering of each candidate to cast a valid vote) that allows the elector to elect not to provide a number for one or more candidates. In this system of voting, a vote may "expire" and not be counted in the final tally if all of the voter's number candidates are eliminated.