The action that the operator of a stand-on vessel need to do when they encounter a giveaway vessel is to remain on course because it is on right way.
A stand-on vessel refers to a vessel that currently has the right of way.
A giveaway vessel means a vessel that need to to take substantial action to keep out of the way of other vessels either by stopping, slowing down, changing course etc
In conclusion, the action that the operator of a stand on vessel need to do when they encounter a giveaway vessel is to remain on course because it is on right way.
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