7B.— The Minister shall be deemed always to have had the power to make the regulations under section 3 of the European Communities Act 1972 entitled the "European Communities (Energy Performance of Buildings) Regulations 2005" (S.I. No. 872 of 2005) and, accordingly—

(a) the amendment of section 3(2) purported to have been made by those Regulations shall be deemed to have been validly made and to have been in operation as and from the date those Regulations were purported to have been made, and

(b) the Building Regulation (Amendment) Regulations 2005 (S.I. No. 873 of 2005) made in the purported exercise of the powers conferred by sections 3 and 18 shall be deemed to have been validly made and to have been in operation as and from the time that those Regulations provided that those Regulations were to come into operation.]