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1. Vessels carrying out transport operations involving involving certain flammable substances that are referred to in ADN shall carry, in addition to the marking prescribed elsewhere in these regulations, the following marking in accordance with the requirements of sub-section 7.1.5.0 or sub-section 7.2.5.0 of ADN:
By night:
A blue light;
By day:
A blue cone, point downwards
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These markings shall be in a suitable position and high enough to be visible from all directions. The blue cone may be replaced by one blue cone at the bow and one blue cone at the stern of the vessel, at a height of not less than 3 m.
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These markings shall be placed one about 1 m one above the other, in a suitable position and high enough to be visible from all directions. The two blue cones may be replaced by two blue cones at the bow and two blue cones at the stern of the vessel at a height not less than 3 m.
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These markings shall be about 1 m one above the other, in a suitable position and high enough to be visible from all directions. The three blue cones may be replaced by three blue cones at the bow and three blue cones at the stern of the vessel at a height of not less than 3 m.
4. When a pushed convoy or side-by-side formation includes one or more of the vessels referred to in paragraphs 1, 2 or 3 above, the marking prescribed in paragraphs 1, 2 or 3 above shall be carried by the vessel propelling the pushed convoy or side-by-side formation.
5. Pushed convoys propelled by two pushers side-by-side shall carry the marking referred to in paragraph 4 above on the starboard pusher.
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