18Magnetic compass

18 Magnetic compass

(1) The master of a vessel must ensure that:

(a) for a vessel more than 100 GT:

(i) a compass deviation book is kept on the vessel; and

(ii) the information mentioned in Schedule 1 is recorded in the compass deviation book; and

(b) if the observations for a magnetic compass on the vessel show a deviation of the compass on any heading of more than 5o — the compass is adjusted to correct the deviation in accordance with subsection (2); and

(c) for each magnetic compass fitted on the vessel — the tables or curve of residual deviations from the last adjustment, and details of subsequent changes in deviations, are available for use at all times; and

(d) the size and position of magnets and soft iron correctors in a compass fitted on the vessel and the date and nature of any changes made to them or to their position are recorded by the person making the adjustment.

(2) For paragraph (1)(b), the compass must be adjusted by a qualified compass adjuster or the master of the vessel.

Note For circumstances in which it is recommended that a compass be adjusted, see Annex G of ISO 25862:2009 Ships and marine technology – Marine magnetic compasses, binnacles and azimuth reading devices.

(3) An offence against subsection (1) is a strict liability offence.

(4) A person is liable to a civil penalty if the person contravenes subsection (1).

(5) If a compass is adjusted, details of the deviations in the approved form must be:

(a) if the compass is adjusted by a qualified compass adjuster — given to the master by the qualified compass adjuster; or

(b) if the compass is adjusted by the master — prepared by the master.

(6) An inspector may direct the master of a vessel to have a compass of the vessel adjusted if the inspector considers that:

(a) paragraph (1)(c) or (d) has not been complied with; and

(b) the compass is, or may be, unreliable.

(7) The master of a vessel must comply with the direction as soon as practicable.