The Water Undertakers (Rateable Values)(England) Order 2000
Under paragraph 3(2) of Schedule 6 to the Local Government Finance Act 1988, the Secretary of State may by order provide in the case of non-domestic hereditaments to be shown in central rating lists that the normal rules of valuation for rating contained in paragraphs 2 to 2C of that Schedule are not to apply to such hereditaments (that is to say, by reference to the rent a hypothetical tenant would pay for the hereditament on an annual basis) and instead their rateable values shall be such as are specified in the order or determined in accordance with prescribed rules.