The Secretary of State may by order repeal or amend a provision of a local Act passed before 8th August 1980 where it appears to him that the provision is inconsistent with a provision of this Part relating to the right to buy . . ..
Before making an order under this section the Secretary of State shall consult any local housing authority appearing to him to be concerned.
An order made under this section may contain such transitional, incidental or supplementary provisions as the Secretary of State considers appropriate.
An order under this section—
may make different provision with respect to different cases or descriptions of case, including different provision for different areas, and
shall be made by statutory instrument which shall be subject to annulment in pursuance of a resolution of either House of Parliament.