S.C. Code Regs. § § 123-19.32
Pursuant to Section 50-21-710 which requires that a uniform marking system of state waterways be compatible with the system prescribed by the United States Coast Guard for the marking of state waters; and the United States Coast Guard having promulgated the system known as the Uniform State Waterway Marking System for the marking of State waterways ( 33CFR66); and, the State being the recipient of Federal Boating Funds under a program requiring the marking of state waters with aids to navigation, a federal grant program of the type described in Section 1-23-120, Code of Laws of South Carolina (1976) as amended.
The Uniform State Waterway Marking System, as described in 33CFR66, is adopted to be the system used to mark the waters of this State in compliance with Section 50-21-710.
S.C. Code Regs. § 123-19.32