C6.5 Umpire Decisions
is displayed, the umpires shall decide whether to
penalize any boat. They shall signal their decision in
compliance with
rule C5.1
,
C5.2
or
C5.3
. However,
from a boat, the
umpires may disregard the flag Y
.
penalty in
C5.3
shall be used when a boat has
gained a controlling position as a result of breaking a
rule
, but
the umpires are not certain that the conditions for an additional
umpire-initiated penalty have been fulfilled.