Under SOLAS Chapter V, Regulation 12 (Shipborne Navigational Equipment), all ships are required to carry a minimum of navigational equipment, depending on their size – the larger the ship, the more equipment it should have.
|All ships irrespective of size shall have:|
|2.1.1||a properly adjusted standard magnetic compass or other means, independent of any power supply to determine the ship’s heading and display the reading at the main steering position;|
|2.1.2||a pelorus or compass bearing device, or other means, independent of any power supply to take bearings over an arc of the horizon of 360°;|
|2.1.3||means of correcting heading and bearings to true at all times;|
|2.1.4||nautical charts and nautical publications to plan and display the ship’s route for the intended voyage and to plot and monitor positions throughout the voyage; an electronic chart display and information system (ECDIS) may be accepted as meeting the chart carriage requirements of this subparagraph;|
|2.1.5||back-up arrangements to meet the functional requirements of subparagraph .4, if this function is partly or fully fulfilled by electronic means;*|
* An appropriate folio of paper nautical charts may be used as a back-up arrangement for ECDIS. Other back-up arrangements for ECDIS are acceptable (see appendix 6 to resolution A.817(19), as amended).
|2.1.6||a receiver for a global navigation satellite system or a terrestrial radio navigation system, or other means, suitable for use at all times throughout the intended voyage to establish and update the ship’s position by automatic means;|
|2.1.7||if less than 150 gross tonnage and if practicable, a radar reflector or other means, to enable detection by ships navigating by Radar at both 9 and 3 GHz;|
|2.1.8||when the ship’s bridge is totally enclosed and unless the Administration determines otherwise, a sound reception system, or other means, to enable the officer in charge of the navigational watch to hear sound signals and determine their direction;|
|2.1.9||a telephone, or other means, to communicate heading information to the emergency steering position, if provided.|
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|2.2||All ships of 150 gross tonnage and upwards and passenger ships irrespective of size shall, in addition to the requirements of paragraph 2.1, be fitted with:|