# The Traffic Signs Regulations and General Directions 2016, Paragraph 2

Extent: E+W+S

A cylinder is to consist of a cylindrically shaped device which conforms to the provisions of British Standard BS EN 13422:2004+A1:2009 set out in paragraph 8.

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Source: https://www.legislation.gov.uk/uksi/2016/362/schedule/13/part/8/paragraph/2 (the official version)
Page: https://openlegislation.uk/traffic-signs-regulations-and-general-directions-2016/schedule-13/part-8/paragraph-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.