This 2013 version updates the 2007 version, which can be found on the National Archives.
The public, and Parliament acting on their behalf, have a right to expect that funds raised using powers agreed by Parliament will be used for the purposes intended. Public servants have a demanding fiduciary duty to use public money responsibly.
Much of what managing public money requires is just good common sense, or sound financial management. There are also some specific rules and conventions about how certain things are handled, which ensure that policies, programmes and projects work smoothly and serve their intended purposes.