20Expenditure
(1)For each financial year the Auditor General and the WAO must jointly—
(a)prepare an estimate of the income and expenses of the WAO, and
(b)lay the estimate before the National Assembly.
(2)Each estimate must cover (amongst other things) the resources required for the purposes of section 21 (resources for Auditor General).
(3)Each estimate must be laid before the National Assembly at least five months before the beginning of the financial year to which it relates.
(4)The National Assembly may make any modifications to the estimate which it considers appropriate (subject to subsection (5)).
(5)No modification can be made under subsection (4) unless—
(a)the Auditor General and the WAO have been consulted, and
(b)any representations that either may make have been taken into account.