1. Sailing vessels shall carry:
(a) The side lights prescribed in article 3.08, paragraph 1 (b); however these lights may be ordinary, instead of bright;
(b) The stern light prescribed in article 3.08, paragraph 1 (c).
2. In addition to the lights prescribed in paragraph 1 of this article, a sailing vessel may carry:
Two ordinary or bright lights one above the other, visible from all directions, the upper light being red and the lower green; these lights shall be in a suitable position at the top or on the upper part of the mast and not less than 1 m apart.
3. All vessels under sail and simultaneously using their own mechanical means of propulsion shall carry:
The lights according to paragraph 1 and one masthead light instead of the lights according to paragraph 2.
A black cone, point downwards.
This cone shall be positioned as high as possible and where it will be most obvious.