This Act applies in relation to an Act of the Scottish Parliament and an instrument made under such an Act only to the extent provided in this section.
Except as provided in subsection (3) below, sections 15 to 18 apply to—
(a) an Act of the Scottish Parliament as they apply to an Act,
(b) an instrument made under an Act of the Scottish Parliament as they apply to subordinate legislation.
In the application of those sections to an Act and to subordinate legislation—
(a) references to an enactment include an enactment comprised in, or in an instrument made under, an Act of the Scottish Parliament, and
(b) the reference in section 17(2)(b) to subordinate legislation includes an instrument made under an Act of the Scottish Parliament.
In the application of section 20 to an Act and to subordinate legislation, references to an enactment include an enactment comprised in, or in an instrument made under, an Act of the Scottish Parliament.