The appropriate authority may by regulations make such consequential, supplementary, incidental or transitional provision in relation to any provision of this Part as the authority considers appropriate.
The appropriate authority is the Secretary of State, subject to subsection (3).
The appropriate authority is the Welsh Ministers for—
provision which would be within the legislative competence of the National Assembly for Wales were it contained in an Act of the Assembly;
provision which could be made by the Welsh Ministers under any other power conferred on them.
Regulations under this section may amend, repeal or revoke any primary or secondary legislation (whenever passed or made).