S.C. Const. art. VIII, § 12

Notwithstanding any other provisions of this Constitution, any county may consolidate with the municipalities and other political subdivisions within its limits into a single unit of government, which shall be known as a consolidated political subdivision.

The General Assembly shall provide by law for a referendum on such consolidations and for procedures for the framing of a charter for the new political subdivision. Such referendum shall be held only upon the request of the governing body of the county or upon petition of ten percent of the registered electors within the county.

Such consolidation shall not take place unless approved by a majority of the qualified electors voting on the questions of the consolidation and on the charter therefor in the same election or in successive elections held for these purposes. All municipalities and all other political subdivisions within the county not continued by the approved charter shall cease to exist at the effective date of the consolidation.

Any political subdivision created by such a consolidation shall have the power to frame, to publish, to adopt, and to amend a charter setting forth its governmental structure and organization, powers, duties, functions, and responsibilities. No charter so framed shall contain any provision inconsistent with this Constitution or with general law provisions applicable in all municipalities or counties enacted pursuant to Section 14 of this article.

Such charter or charter amendments shall not become effective until approved by a majority of the qualified electors of such political subdivisions voting on the question.