In this Act "qualifying provision" means a provision of any of the following—
assimilated direct legislation;
technical standards made in accordance with Chapter 2A of Part 9A;
other subordinate legislation made under assimilated direct legislation;
subordinate legislation ... made by virtue of regulations made under section 8 of the European Union (Withdrawal) Act 2018.
In this section, "subordinate legislation" has the same meaning as in the Interpretation Act 1978 (see section 21 of that Act).