# Gas Act 1986, Paragraph 4


(1) This paragraph applies where a consumer is supplied with gas through a meter at a rate not exceeding 75,000 therms a year.
(2) Subject to sub-paragraph (3) below, the register of the meter shall be prima facie evidence of the quantity of gas supplied.
(3) Where the meter is found, when examined by a meter examiner appointed under section 17 of this Act, to register erroneously to a degree exceeding the degree permitted by regulations under that section, the meter shall be deemed to have registered erroneously to the degree so found since the relevant date, except in a case where it is proved to have begun to do so on some later date.
(4) In sub-paragraph (3) above “the relevant date ” means—
(a) the penultimate date on which, otherwise than in connection with the examination, the register of the meter was ascertained; or
(b) if regulations so provide, such other date as may be determined by or under the regulations.

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Source: https://www.legislation.gov.uk/ukpga/1986/44/schedule/2B/paragraph/4 (the official version)
Page: https://openlegislation.uk/gas-act-1986/schedule-2B/paragraph-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.