# Regulation (EC) No 1222/2009 of the European Parliament and of the Council of 25 November 2009 on the labelling of tyres with respect to fuel efficiency and other essential parameters (Text with EEA relevance), Division 3: Calculation of wet grip index (G)

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

G = G(T) – 0,03
where: G(T) = wet grip index of the candidate tyre as measured in one test cycle
C1 tyres
C2 tyres
C3 tyres
G
Wet grip class
G
Wet grip class
G
Wet grip class
1,55 ≤ G
A
1,40 ≤ G
A
1,25 ≤ G
A
1,40 ≤ G ≤ 1,54
B
1,25 ≤ G ≤ 1,39
B
1,10 ≤ G ≤ 1,24
B
1,25 ≤ G ≤ 1,39
C
1,10 ≤ G ≤ 1,24
C
0,95 ≤ G ≤ 1,09
C
Empty
D
Empty
D
0,80 ≤ G ≤ 0,94
D
1,10 ≤ G ≤ 1,24
E
0,95 ≤ G ≤ 1,09
E
0,65 ≤ G ≤ 0,79
E
G ≤ 1,09
F
G ≤ 0,94
F
G ≤ 0,64
F
Empty
G
Empty
G
Empty
G

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Source: https://www.legislation.gov.uk/eur/2009/1222/annex/I/part/2/division/3 (the official version)
Page: https://openlegislation.uk/eu-regulation-2009-1222/annex-I/part-2/division-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.