These Regulations implement Annex I (Regulations for the Prevention of Pollution by Oil) of the International Convention for the Prevention of Pollution from Ships, 1973, as modified by the Protocol of 1978 (“the MARPOL Convention”). Annex I first entered into force on 2nd October 1983, and the revised version of the Annex which these Regulations implement entered into force on 1st January 2007. Further amendments have been made to the Annex which are also implemented by these Regulations. As a consequence the Merchant Shipping (Prevention of Oil Pollution) Regulations 1996 (S.I. 1996/2154) and other instruments which amend them are revoked, and other legislation is amended (regulation 1(2) and (3) and the Schedule).
Link: The Merchant Shipping (Prevention of Oil Pollution) Regulations 2019
Source: Legislation .gov.uk
