Canadian Coast Guard ship
The designation Canadian Coast Guard Ship (CCGS; , NGCC) is applied as a prefix to vessels in the Canadian Coast Guard. Prior to the formation of the Coast Guard in the 1960s ships operated by the Canadian Department of Fisheries and Oceans (now known as Fisheries and Oceans Canada) were named with either the CGS prefix for Canadian Government Ship (Le CGS in French) or DGS for Dominion Government Ship. See also
Equipment of the Canadian Coast Guard lists vessels of the Coast Guard
His Majesty's Canadian Ship or HMCS a prefix used by the Royal Canadian Navy

References

  
Ship prefixes