# The Merchant Shipping (Categorisation of Waters) Regulations 1992, Regulation 2


References to Merchant Shipping Notice M1504 includes references to any subsequent Merchant Shipping Notice amending or replacing it which specifies the date on which such subsequent notice takes effect and which the Secretary of State considers relevant from time to time.

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Source: https://www.legislation.gov.uk/uksi/1992/2356/regulation/2 (the official version)
Page: https://openlegislation.uk/merchant-shipping-categorisation-of-waters-regulations-1992/regulation-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.