International Regulations For Preventing Collisions At Sea, 1972 (Annexes) Page 1 : Contents Page 2 : Annex I - Details of Lights and Shapes Page 3 : Annex II - Signals for Fishing Vessels Page 4 : Annex III - Details of Sound Signals Page 5 : Annex IV - Distress Signals see also: Main Collision Regulations