(1) Charter county governments may exercise the constitutional and statutory rights, powers, privileges, immunities, and responsibilities of counties and cities of the home rule class within the county:
(a) In effect on the date the charter county government becomes effective;
(b) That may subsequently be authorized for or imposed upon counties and cities of that class; and (c) That may be authorized for or imposed upon charter counties.
(2) Rights, powers, privileges and immunities exercised by charter county governments pursuant to subsection (1)(a) and (b) of this section shall continue to be authorized for charter county governments notwithstanding repeal or amendment of the statutes upon which they are based unless expressly repealed or amended for charter county governments.