Division 7.1.5.1 The actual outer diameter of a retreaded tyre must not be outside the values of Dmin and Dmax obtained by the following formulae:F1 Original text. Later amendments are not shown. Dmin = d + (2H x a) Dmax = d + (2H x b) where: Annotations Textual amendments F1 Substituted by Council Decision of 13 March 2006 amending Decisions 2001/507/EC and 2001/509/EC with a view to making United Nations Economic Commission for Europe (UN/ECE) Regulation Nos 109 and 108 on retreaded tyres compulsory (2006/443/EC). ← Division 7.1.5 Division 7.1.5.1 Division 7.1.5.1.1 →