6.—(1) Functions under the enactments mentioned in sub-paragraph (2) below shall, for the purposes of section 63 of the 1998 Act, be treated–
(a)as being exercisable in or as regards Scotland so far as they relate to pipe-lines which begin and end in Scotland, but
(b)as otherwise not exercisable in or as regards Scotland.
(2) Those enactments are–
(a)section 9(3)(a) of, and Parts I and III of Schedule 3 to, the Gas Act 1986(1);
(b)the Public Gas Transporter Pipe-line Works (Environmental Impact Assessment) Regulations 1999(2); and
(c)the Pipe-line Works (Environmental Impact Assessment) Regulations 2000(3).