South carolina constitution
Article VII: counties and county government
Section 15

The legislature may authorize participating governments to provide financial support for facilities and services required to implement recommendations of such organizations which are accepted and approved by the governing bodies of the participating political subdivisions. Such organizations shall not have the power to levy taxes. Local funds for the support of such organizations shall consist of contributions from the participating political subdivisions as may be authorized and granted by their respective governing bodies. The prohibitions against dual office holding contained in Section 2 of Article 2 and Section 24 of Article 3 of this Constitution shall not apply to any elected or appointed official or employee of government who serves as a member of a regional council.