If you want to apply for a postal or proxy vote, then you have until your convenient Electoral Office doors shut at 5pm on Thursday 15 April to get your signed form in along with the evidence that you'll not be able to make it to your polling on the day. They've tightened up on the rules again, so make sure you read the guidance on the first page.
If you're in Castlereagh East and eligible to vote in the council by-election, you'll need to fill out a separate form for that too! (If you fall ill after the 15 April closing date, you may still be able to apply for a postal/proxy vote before 5pm on Tuesday 27 April. Contact the Electoral Office helpline 0800 4320 712.)
If you're not already on the electoral register, then you need to get your form filled in and identification accepted by the Electoral Office by 5pm on Tuesday 20 April.
Lastly, if you want to register to be a candidate, you need to do make sure you've got your forms filled out, nominees sorted and taken it all in person (or sent your agent!) to your deputy returning officer between 10am and 4pm on Thursday 15, Friday 16, Monday 19 or Tuesday 20 April 2010. Expect to use up a couple of Bic biros in the process. (Well, maybe not quite that bad.)