This info below appears on the South African High Commission website in Canberra, Australia.
General Information - Registered Overseas Voters
South African citizens who are registered voters in South Africa and who intend to vote outside of South Africa in Elections 2009 are required to notify the IEC of SA of their intention to vote outside of SA by 27 March 2009.
The notification period has been extended by the Constitutional Court ruling of 12 March 2009.
To notify the IEC, registered voters are required to complete a VEC 10 form and return it to the IEC by 27 March 2009.
To obtain a VEC 10 form and IEC contact details, please refer to www.elections.org.za and go to `special votes’.
To check if you are a registered voter, on the IEC’s web site go to `Am I registered’ and type in your identity number on-line. Voting outside of SA for Elections 2009 will occur on 15 April 2009 (and not on 22 April 2009) at South African Diplomatic and Consular missions abroad.
Once your notification to vote outside of SA is approved by the IEC, you are required to present both your bar-coded South African citizenship identity document (or valid temporary identity certificate) and your (South African) passport to a South African Diplomatic or Consular mission on 15 April 2009.
In this regard, a citizen registered to vote outside the Republic will present both their bar-coded South African citizenship identity document (or valid temporary identity certificate) as well as their South African passport when voting.
Voting in Australia will take placed on 15 April 2009 at the South African High Commission in Canberra and in New Zealand on the same date in Wellington.