Name of proportional representation system  Optional preferential proportional representation  

Ballot Paper  Ticket Voting Above or beside the line voting  Voters may vote above the line (ATL) OR below the line (BTL). 
Rotation of candidate names  No. Order of names in each group determined by the party or group. Order of groups and ungrouped candidates on ballot paper determined by random draw.  
Directions  You may vote in one of two ways: If voting Above the Line (ATL),
If voting Below the Line (BTL),


Formality  A vote Above the Line (ATL) is informal if:
NOTE: a single tick or single cross in a square above the line is accepted as a first preference vote.
NOTE: ticks and crosses below the line are NOT accepted as preferences. 

Distribution of a Surplus  Method of distribution of surplus votes and calculation for new transfer value 
Once a candidate is elected their ballot papers are distributed to remaining candidates according to the next preference. A transfer value is then calculated to determine how many actual ballot papers are retained by the continuing candidates. The transfer value will almost invariably be less than 1. The number of ballot papers that have been distributed to each continuing candidate is multiplied by the transfer value. The result is the number of ballot papers retained by that continuing candidate. That number of ballot papers are selected at random and given to the continuing candidate. The remaining ballot papers are set aside as the elected candidate's quota. 
Election of a candidate  Exclusion of candidates  Ballot papers passed on to continuing candidates from excluded candidates are always transferred at full value i.e. value of 1. 
Exclusion of the lowest candidate when two or more are equal  Exclude the candidate drawn by lot.  
Casual Vacancies  How is a casual vacancy filled?  The new member is elected at a joint sitting of Upper and Lower Houses. Generally nominations are limited to the party for which the member vacating the seat was elected. 
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 Electoral systems
 Proportional Representation Voting Systems of Australia's Parliaments
 Proportional Representation  NSW Legislative Council