# The Chemicals (Hazard Information and Packaging) Regulations 1993, Paragraph 7: Substance identification number


Except where the package contains two or more different substances dangerous for carriage when no substance identification numbers need be shown, the substance identification number shall be ascertained for the purposes of regulation 10(2)(b)(ii) as follows—
(a) in the case of a substance which is listed in Part 1 of the approved carriage list, the number shall be that specified in the appropriate entry in column 2 of that Part;
(b) in the case of any other substance, the number shall be that, if any, specified in column 2 of Part 2 of the approved carriage list as corresponding to—
(i) the most relevant general description for that substance specified in column 1 of that Part, and
(ii) the classification determined in accordance with regulation 7 and specified in column 3of that Part; or
(c) in the case of an article which is listed in Part 3 of the approved carriage list, the number shall be that specified in the appropriate entry in column 2 of that Part.

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Source: https://www.legislation.gov.uk/uksi/1993/1746/schedule/8/paragraph/7 (the official version)
Page: https://openlegislation.uk/chemicals-hazard-information-and-packaging-regulations-1993/schedule-8/paragraph-7
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.