S.C. Code Regs. 136-750. Federal Pilot Licensure

A. The pilots are authorized to perform federal pilotage services to merchant vessels requiring federally licensed pilots, and to public vessels of the United States, provided that such service does not conflict with their duties as State pilots. B. Federal law [46 USC 8502(b)] prohibits State pilots from charging more for federal pilotage than the customary rates. The pilots are authorized to charge less and are further authorized to enter into contract(s) for the performance of federal pilotage.