# The Road Vehicles Lighting Regulations 1989, Paragraph 11

Extent: E+W+S

Other requirements–
The light shown by any one warning beacon shall be displayed not less than 60 nor more than 240 equal times per minute and the intervals between each display of light shall be constant.

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Source: https://www.legislation.gov.uk/uksi/1989/1796/schedule/16/paragraph/11 (the official version)
Page: https://openlegislation.uk/road-vehicles-lighting-regulations-1989/schedule-16/paragraph-11
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.