24The Secretary of State may, as respects any year from 1967-68 to 1971-72, by order provide for the modification of the cumulo rateable values pertaining to all or any water undertakings.
25Before making an order under this Schedule the Secretary of State shall consult with such associations of local authorities or other bodies or associations as appear to him to be concerned.
26Any statutory instrument containing an order made under paragraph 2 or 3 of this Schedule shall not have effect unless approved by a resolution of the Commons House of Parliament, and any statutory instrument containing an order made under any other provision of this Schedule shall be subject to annulment in pursuance of a resolution of either House of Parliament.
27For the purposes of this Schedule—
" burgh " has the like meaning as in the [1947 c. 43.] Local Government (Scotland) Act 1947;
" limits of supply " has the meaning assigned to it by section 5(3) of the [1946 c. 42.] Water (Scotland) Act 1946 ;
" public water rate " and " domestic water rate " have the meanings assigned to them by section 1 of the [1949 c. 31.] Water (Scotland) Act 1949 ;
" rating area " means the area of a rating authority within the meaning of Part XI of the Local Government (Scotland) Act 1947;
" separately rated area " means any part of a burgh or landward area in which a different rate or rates is or are levied from those levied in other parts of the burgh or landward area;
" unit " means a thousand gallons of water;
" valuation roll " means the roll made up by the Assessor under the Valuation Acts ;
references to the supply of water in bulk are references to a supply taken by a local water authority for augmenting or constituting the supply to be given by them.