(a) General rule.--Every local government unit obtaining a home rule charter after July 12, 1972, shall be subject to the substantive provisions of this subpart applicable to it as if it were a local government unit and may adopt the procedural provisions of this subpart, by incorporation thereof by reference, in its home rule charter.
(b) Referendum requirements.--The home rule charter of a county may establish limitations pertaining to incurring debt without the approval of electors which are more restrictive than the provisions contained in section 8022 (relating to limitations on incurring of other debt).