# The Motor Vehicles (Designation of Approval Marks) Regulations 1979, Paragraph 16


The figure in the rectangle above the circle in the marking relating to item No. 24A in Schedule 2 (which indicates the corrected absorption coefficient of the vehicle part to which that marking relates) will be varied in accordance with the requirements of the ECE Regulation specified in column (5) of Schedule 2 in relation to that marking.

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Source: https://www.legislation.gov.uk/uksi/1979/1088/schedule/3/paragraph/16 (the official version)
Page: https://openlegislation.uk/motor-vehicles-designation-of-approval-marks-regulations-1979/schedule-3/paragraph-16
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.