COLREG Annex I – Positioning and Technical Details of Lights and Shapes – Set B
Source: Convention on the International Regulations for Preventing Collisions at Sea, 1972 (COLREG), Annex I – Positioning and Technical Details of Lights and Shapes.
Reference: imorules.com – COLREG Annex I
Question 5 of 10
5. Where two masthead lights are prescribed for a power-driven vessel, the horizontal distance between them shall not be less than one half of the length of the vessel, but need not be more than: