7R-3A1 C
 The Sea Area you are in is determined by:
A. The vessel's distance from shore.
B. The types of maintenance available to your vessel.
C. Whether the ship station is in range of a VHF-DSC, MF-DSC, HF-DSC Coast Station or Inmarsat coverage.
D. Whether the ship only makes domestic/coastal voyages or it goes international.
