1. Ferry-boats not moving independently shall, when made fast at their landing stage, carry by night the lights prescribed in article 3.16, paragraph 1. In addition, the lead boat or float of a longitudinal cable ferry-boat shall carry the light prescribed in article 3.16, paragraph 2.
2. Ferry-boats moving independently in service shall, when made fast at their landing stage, carry by night the lights prescribed in article 3.16, paragraph 1. When made fast for a short time, they may also keep the lights prescribed in article 3.08, paragraph 1 (b) and (c). The green light referred to in article 3.16, paragraph 3 (b) shall be extinguished as soon as the ferry-boat is no longer in service.