Regulation 12 The magnetic compass installation
Except in the case of United Kingdom ships having Passenger Certificates of Class IV, VI or VI(A), the magnetic compass installation shall comprise:
a standard magnetic compass, fitted on the centre line of the ship and mounted on a binnacle.
a steering magnetic compass, fitted on the centre line of the ship and mounted on a binnacle, unless heading information provided by the standard compass required under (a) is available to and is clearly readable by the helmsman at the main steering position;
adequate means of communication between the standard compass position and the normal navigation control position; and
means for taking bearings as nearly as practicable over an arc of the horizon of 360°.
In the case of United Kingdom ships having Passenger Certificates of Class IV, VI or VI(A) the magnetic compass installation shall comprise one efficient magnetic compass at the steering position.