S.C. Code Ann. § 2-3-220: Pay certificates of officers and employees.

The subordinate officers and employees of the General Assembly shall, in like manner, be furnished with certificates of pay in such amounts as shall be fixed by that branch of the General Assembly to which such officers and employees shall respectively belong except that the pay certificates for services common to the two houses shall be signed by the President of the Senate and countersigned by the Speaker of the House of Representatives.