Your certification/authorization will be valid for 3 years from the date you're approved and must re-submit for re-certification at least two weeks prior to the expiration for review and approval. http://chrisrules.awardspace.co.uk/gbook/go.php?url=http://citylightsfund.org/index.php/k2-component/item/81-choosing-the-right-business-structure%3Flimit=1