SI 2021/1108. The Merchant Shipping (Prevention of Air Pollution from Ships) (Amendment) Regulations 2021. Coming into force 22nd October. These Regulations amend SI 2008/2924 The Merchant Shipping (Prevention of Air Pollution from Ships) Regulations 2008 to give effect to a number of resolutions of the Marine Environment Protection Committee of the International Maritime Organization. Amendments are made to amendments to Regulations 2(1); interpretation, 3; application and exemptions, 21; nitrogen oxides ,25; fuel oil quality and 32(1); offences and to Schedules 2 ; engines excluded from regulation 21) and 2A; sulphur oxides. A new Regulation 2A is added to facilitate the implementation of subsequent amendments to the Convention for the Prevention of Pollution from Ships.