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(1)The Secretary of State may by regulations amend any provision of this Act, or any other enactment (whenever passed or made) relating to gas by substituting—
(a)for any reference therein to the therm, a reference to a unit of measurement defined in terms of metric units, and
(b)for any reference therein to a distance expressed in imperial units, a reference to one expressed in metric units, being one which is either equivalent thereto or such an approximation thereto as the Secretary of State considers it preferable to substitute for the purpose of securing that the enactment in question as amended is expressed in convenient terms.
(2)The Secretary of State may also by regulations amend section 25(1) of this Act by substituting for the definition of " calorific value " a definition expressed in terms of metric units.
(3)Regulations under this section may contain such incidental, supplemental and consequential provisions as the Secretary of State considers expedient.