22.38 Vessels of special function
Maritime Rules Part 22: Collision Prevention
(1) Whenever the Director determines that a vessel of special construction or purpose cannot fully comply with the provisions of this Part relating to number, position, range, or arc of visibility of lights or shapes, then such a vessel must comply with such other provisions relating to the number, position, range, or arc of visibility of lights or shapes as the Director determines to be the closest possible compliance with this Part for that vessel.
(2) Whenever the Director determines that a vessel of special construction or purpose cannot fully comply with the provisions of this Part relating to the disposition and characteristics of sound-signalling appliances, then such a vessel must comply with such other provisions relating to the disposition and characteristics of sound-signalling appliances as the Director determines to be the closest possible compliance with this Part for that vessel.