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 a