# Council Decision of 26 June 2001 on the accession of the European Community to Regulation 108 of the United Nations Economic Commission for Europe concerning the approval for the production of retreaded pneumatic tyres for motor vehicles and their trailers (2001/509/EC), Division 6.6.8.1: For radial ply and bias belted tyres (mm):


1,5 ≤ (A+B) ≤ 5 (minimum 1,5 mm; maximum 5,0 mm)
A ≥ 1A 1A 1A 1A 1 (minimum 1,0 mm)
B ≥ 0.5B 0.5B 0.5B 0.5B 0.5 (minimum 0,5 mm)
P.D. = Pattern depth
X = Buff line
A = Average thickness of new material under patternP.D. = Pattern depth X = Buff line A = Average thickness of new material under patternP.D. = Pattern depth X = Buff line A = Average thickness of new material under patternP.D. = Pattern depth X = Buff line A = Average thickness of new material under patternP.D. = Pattern depth X = Buff line A = Average thickness of new material under pattern
B = Minimum thickness of original material above belt after buffing

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Source: https://www.legislation.gov.uk/eudn/2001/509/attachment/1/division/6./division/6.6.8.1. (the official version)
Page: https://openlegislation.uk/eu-decision-2001-509/attachment-1/division-6./division-6.6.8.1.
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.