12.9.1 Ships of Polar Classes 1 to 5 inclusive
and all ships intended to operate in periods of prolonged darkness
should be equipped with at least two suitable searchlights which should
be controllable from conning positions.
12.9.2 The searchlights described in paragraph
12.9.1 should be installed to provide, as far as is practicable, all-round
illumination suitable for docking, astern manoeuvres or emergency
towing.
12.9.3 The searchlights described in paragraph
12.9.1 should be fitted with an adequate means of de-icing to ensure
proper directional movement.
12.9.4 Ships of Polar Classes 1 to 5 inclusive,
all icebreakers and all ships that may be involved in an escort of
more than one ship following in an ice track should be equipped with
a manually operated flashing red light visible from astern to indicate
when the ship is stopped. This should be capable of use from any location
from which the ship can be manoeuvred. The flashing light should have
a range of visibility of at least two (2) nautical miles. The colour
and frequency of the flashing light should be according to standards
given in COLREG. The horizontal and vertical arcs of visibility of
the flashing light should be as specified for stern lights in COLREG.