Regulation No. 1157 on navigation and navigational aids for ships and mobile offshore units.

This Regulation applies to Norwegian vessels (cargo ships, passenger ships, mobile units and barges) and sets regulations on the navigation aids for vessels. Regulations requirements for facilities, equipment, installations etc. shall be documented and detailed. Updated official nautical charts and nautical publications shall be kept on board so that positions can be monitored throughout their navigations. ECDIS (Electronic Chart Display and Information System) meets these requirements. For systems installed before 1 January 1999, feature standard MSC.232 (82) should be applied. An updated version of Volume III of IAMS Handbook (International Aeronautical and Maritime Search and Rescue) must be on board.
Chapter 1 - General provisions (articles 1-2).
Chapter 2 - Operational Requirements (articles 3-11).
Chapter 3 - Broutforming and visibility from the bridge (articles 12-13).
Chapter 4 - Navigation Aids (articles 14-24).
Chapter 5 - Access Means los (articles 25-28).
Chapter 6 - Final provisions (article 29).
Appendix 1 - A. Requirement criteria for navigation aids on vessels built prior to 1 September 1984.
Appendix 1 - B. Requirement criteria for navigation aids on vessels built on or after 1 September 1984 and no later than 30 June 1987.
Appendix 1 - C. Requirement criteria for navigation aids on vessels built on or after 1 July 1987 and no later than 31 October 1992.
Appendix 1 - D. Requirement criteria for navigation aids on vessels built on or after 1 November 1992 and no later than 30 June 2002.