To ask the Chancellor of the Exchequer how many layers of management reporting from the most senior to the most junior there are in his Department and each of its agencies; how many officials are employed in each such layer; and how much was spent on salaries and associated employment costs of staff at each such layer in the latest year for which information is available. (312818)

HM Treasury and the Office of Government Commerce operate pay ranges in line with civil service guidelines. Staff at all layers within each organisation's pay grading structure may have management responsibilities, except those at the lowest grade; not all staff in any pay grade will have management responsibilities. Where data relate to fewer than five staff, pay ranges have been combined. The UK Debt Management Office does not use comparable pay ranges.

The following tables give the information requested for HM Treasury, the Office of Government Commerce and the UK Debt Management Office, showing the number of posts at each management grade or level.