The charity said the new scheme, to be called the Student Community Action Programme, will ask all 14 to 16-year-old students to complete 50 hours of community service before they turn 19. It is intended to be in place by April.
A spokesman for the charity said it was not yet clear whether the community service would be optional or compulsory, but that it would be linked to the citizenship curriculum in schools. He said further details about the scheme would be made public during the next few days.
The advertisement for staff to run the new scheme claims it will operate until at least March 2011, but could be extended if funds were available.
In April last year, Prime Minister Gordon Brown said he wanted all teenagers to complete 50 hours of volunteering before the age of 19 and that the pledge would be included in the Labour Party's next general election manifesto.