S.C. Code Ann. § 6-7-1110
A local planning commission created under the provisions of this chapter shall approve by proper certificate and authorize the name of a street or road laid out after July 3, 1967, within its jurisdiction.
(3) just reason appears to the commission.
After reasonable opportunity for a public hearing, if the governing authority decides to change the name, it shall issue a certificate designating the change, which must be recorded in the office of the register of deeds or clerk of court. The name as changed and certified becomes the legal name of the street or road.
It is unlawful for a person in laying out a new street or road to name it on a plat by any marking, or in a deed or instrument without first getting the approval of the planning commission. A person who violates this provision is guilty of a misdemeanor and, upon conviction, must be imprisoned not more than three years or fined in the discretion of the court.
The commission, after reasonable notice through a newspaper having general circulation within its jurisdiction, may recommend to the appropriate governing authority a change in the name of a street or road within the boundary of its territorial jurisdiction if: