Regal 26 FASDECK Owner's Manual page 49

NAVIGATION RULES
An overtaking boat is burdened, and is not the priveleged cra ,
even though it approaches the danger zone of the overtaken boat.
e overtaking boat rst signals with a single blast if that boat desires
to pass on the starboard side of the boat ahead, or a double blast if
passing to port. e overtaken cra responds with the same signal
if safe, or with the danger signal (5 short blasts or more) if unsafe.
e boat overtaking must not pass unless the appropriate signals
are sounded.
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Chapter 3