Section 1A(1)(o) in The Merchant Shipping (Control of Pollution by Noxious Liquid Substances in Bulk) Rules, 2010
(o)"noxious liquid substance" means the substance indicated in the pollution category column of chapter 17 or 18 of the International Bulk Chemical Code or falling under any of the categories specified in clauses (a), (b), and (c) of paragraph 6;