Definition of “relevant design standard”
1.—(1) Subject to sub-paragraph (3), a physical feature, in relation to a building situated in England or Wales, satisfies the relevant design standard for the purpose of regulation 9(2) where it accords with the relevant objectives, design considerations and provisions in Approved Document M.
(2) Subject to sub-paragraph (3), a physical feature, in relation to a building situated in Scotland, satisfies the relevant design standard for the purposes of regulation 9(2) where—
(a)it was provided in or in connection with the building on or after 30th June 1994 and before 1st May 2005 in accordance with the Technical Standards relevant in relation to that feature; or
(b)it was provided in or in connection with the building on or after 1st May 2005 in accordance with the relevant functional standards and guidance in the Technical Handbook.
(3) A physical feature does not satisfy the relevant design standard where more than 10 years have elapsed since—
(a)the day on which construction or installation of the feature was completed; or
(b)in the case of a physical feature provided as part of a larger building project, the day on which the works in relation to that project were completed.