With respect to service in all areas outside the corporate limits of municipalities, electric suppliers shall have rights and be subject to restrictions as follows:
The provisions of this item (2) may apply to additional parcels upon agreement of the affected electric suppliers and approval of the Public Service Commission after notice and an opportunity for hearing is given to all interested parties.
The Office of Regulatory Staff shall maintain these maps as public records. If any additional parcels are added pursuant to this item (2), maps must be prepared by, or at the direction of, the Office of Regulatory Staff and maintained by the Office of Regulatory Staff as public records.
S.C. Code § 58-27-620