18. Section 29 of the 1983 Act shall apply for the purposes of a Scottish parliamentary election subject to the following modifications:–
(a)any reference to a parliamentary election shall be construed as a reference to an election for membership of the Scottish Parliament;
(b)any reference to a returning officer shall be construed as a reference to a constituency returning officer and a regional returning officer;
(c)subsections (1) and (2) shall be omitted;
(d)the reference in subsection (5) to “section 30 below” shall be construed as a reference to article 19;
(e)in subsection (8), for “Regulations may” substitute “The Secretary of State may by regulations”; and
(f)after subsection (8) there shall be inserted–
“(8A) Any order made under subsection (3) above and any regulations made under subsection (8) above may make different provision in relation to different cases or in relation to different classes of case.”.