6. Commission Regulation (EC) No. 883/2006 of 21 June 2006 laying down detailed rules for the application of Council Regulation (EC) No. 1290/2005 as regards the keeping of accounts by the paying agencies, declaration of expenditure and revenue and the conditions for reimbursing expenditure under the EAGF and EAFRD (O.J. No. L171, 23.6.2006, p. 1).