# The Motor Vehicles (Designation of Approval Marks) Regulations 1979, Paragraph 2

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

Subject to paragraph 15 below the number shown outside and below the rectangle in any of the said markings will be varied, where appropriate, so as to be the number of the approval document issued for the motor vehicle part concerned. The number will be close to and outside the rectangle in such a position relative to it as may be authorised by the relevant EU Instrument but will be aligned so as to be read in the same direction as the number inside the rectangle.

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Source: https://www.legislation.gov.uk/uksi/1979/1088/schedule/5/paragraph/2 (the official version)
Page: https://openlegislation.uk/motor-vehicles-designation-of-approval-marks-regulations-1979/schedule-5/paragraph-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.