Postal voting
If you are already on the electoral register
Anyone can now apply for a postal vote. A postal vote means that you need never miss out on your right to vote.
You can apply for postal votes at all future elections. Or you can ask for a postal vote for a specific period of time, such as while you are on holiday. You can have your ballot paper sent to any convenient UK address.
Apply for a postal vote online from the Electoral Commission website
or
Download the form from here 
and then post it to the Hertsmere Borough Offices, or ask a friend to take it to the Office
or
From the Electoral Registration Officer who can be contacted at:
Civic Offices,
Elstree Way
Borehamwood
Hertfordshire
WD6 1WA
Telephone: 020 8207 7481
Email: here
If you are not on the electoral register
You can now apply any time up to about a fortnight before polling day to get on the electoral register if you've recently moved into the area or been missed off the official list. British, EU and Commonwealth citizens over 18 are eligible to vote in all local elections.
Download a form or contact electoral services at the above address to apply.