3A4 B
 For a vessel to be in GMDSS Sea Area A-1:
A. The vessel must be within VHF range of a Public Correspondence Station.
B. The vessel must be within range of a coast station equipped with continuous VHF-DSC capability.  
C. The vessel must be within VHF range of a U. S. C. G. communication station. 
D. The vessel must be within VHF range of either a U. S. C. G. or a Public Correspondence Station. 
