# Council Regulation (EEC) No 3821/85 of 20 December 1985 on recording equipment in road transport, Division 2.1

Extent: E+W+S+N.I.

Within the range of measurement, the speed scale must be uniformly graduated by 1, 2, 5 or 10 kilometres per hour. The value of a speed graduation (space between two successive marks) must not exceed 10 % of the maximum speed shown on the scale.

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Source: https://www.legislation.gov.uk/eur/1985/3821/annex/I/division/III/division/b/division/2/division/2.1 (the official version)
Page: https://openlegislation.uk/eu-regulation-1985-3821/annex-I/division-III/division-b/division-2/division-2.1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.