# The Merchant Shipping (Control of Pollution by Noxious Liquid Substances in Bulk) Regulations 1987, Regulation 9: Category B—tank washing in Special Areas


Where a Category B substance is unloaded at a port in a Special Area, every tank from which such substance has been unloaded shall be pre-washed and the resulting tank washings shall be discharged into a reception facility at the port of unloading unless—
(a) unloading was carried out as required by regulation 7 or to the satisfaction of a Marpol surveyor, and
(b) the substance is not a high residue substance, and
(c) the residues are to be retained on board for discharge outside a Special Area.

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Source: https://www.legislation.gov.uk/uksi/1987/551/regulation/9 (the official version)
Page: https://openlegislation.uk/merchant-shipping-control-of-pollution-by-noxious-liquid-substances-in-bulk-regulations-1987/regulation-9
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.