BOTH INTERNATIONAL & INLAND At night, a power- driven vessel less than 12 meters in length may, instead of the normal navigation lights, show sidelights and one __________.

Under Inland Navigation Rules, for the condition where 'At night, a power- driven vessel less than 12 meters in length may, instead of the normal navigation lights, show sidelights and one', the correct requirement is: 'white light'. This standard ensures clear navigational intent and collision avoidance.