# The Railways (Interoperability) Regulations 2011, Paragraph 1.3


Health
(1.3.1) Materials likely, by virtue of the way they are used, to constitute a health hazard to those having access to them must not be used in trains and railway infrastructures.
(1.3.2) Those materials must be selected, deployed and used in such a way as to restrict emission of harmful and dangerous fumes or gases, particularly in the event of fire.

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Source: https://www.legislation.gov.uk/uksi/2011/3066/schedule/2/paragraph/1.3 (the official version)
Page: https://openlegislation.uk/railways-interoperability-regulations-2011/schedule-2/paragraph-1.3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.