The Water Authorities (Return on Assets) Order 1984
The Secretary of State for the Environment, with the approval of the Treasury, in exercise of the powers conferred on him by section 29(2)(a) of the Water Act 1973(a) and of all other powers enabling him in that behalf, hereby makes the following order:-

(a) 1973 c. 37; section 29(2)(a) was amended by section 11(3) of, and Schedule 5 to, the Water Act 1983 (c. 23).
(b) S.I. 1983/1592.