# The Merchant Shipping (Navigational Equipment) Regulations 1993, Regulation 25: Alignment of heading marker


The radar heading marker (and stern marker is fitted) shall be aligned to within 1° of the ship’s fore-and-aft line as soon as practicable after the radar installation has been installed in the ship. Where inter-switching facilities are provided, the heading marker shall be aligned with all arrangements of units. The marker shall be re-aligned as soon as practicable whenever it is found to be substantially inaccurate.

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Source: https://www.legislation.gov.uk/uksi/1993/69/regulation/25 (the official version)
Page: https://openlegislation.uk/merchant-shipping-navigational-equipment-regulations-1993/regulation-25
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.