Volunteer groups have been urged to make nominations for the 2010 Queen's Award for Voluntary Service before the closing date of 5 October.
The award was created by the Queen in 2002 to reward the work of groups of volunteers in local communities.
Nominations can be made by third sector organisations, friends, family or members of the public at any time throughout the year by downloading a form from the awards website.
"I urge people across the UK to help recognise those doing outstanding work in their local communities," said former newsreader Martyn Lewis, chair of the awards committee. "Whether you know a group or have benefited personally from its activities, get a form and nominate."
This year's deadline has been put back from 30 September after postal strikes in London, where the award administrators are based.