http://www.legislation.gov.uk/uksi/1981/577/madeThe Merchant Shipping (Life-Saving Appliances) (Amendment) Regulations 1981enKing's Printer of Acts of Parliament1981-04-22 The Merchant Shipping (Life-Saving Appliances) (Amendment) Regulations 1981RegulationsThe Merchant Shipping (Life-Saving Appliances For Ships Other Than Ships Of Classes III To VI(A)) Regulations 1999reg. 1(2)(b)reg. 4reg. 1(1)