Regulation (EC) No 1222/2009 of the European Parliament and of the CouncilDangos y teitl llawn

ANNEX I U.K. GRADING OF TYRE PARAMETERS

Part A: Fuel efficiency classes U.K.

The fuel efficiency class must be determined on the basis of the rolling resistance coefficient (RRC) according to the ‘A’ to ‘G’ scale specified below and measured in accordance with UNECE Regulation No 117 and its subsequent amendments.

If a tyre type is approved for more than one tyre class (e.g. C1 and C2), the grading scale used to determine the fuel efficiency class of this tyre type should be that which is applicable to the highest tyre class (e.g. C2, not C1).

C1 tyres		C2 tyres		C3 tyres
RRC in kg/t	Energy efficiency class	RRC in kg/t	Energy efficiency class	RRC in kg/t	Energy efficiency class
RRC ≤ 6,5	A	RRC ≤ 5,5	A	RRC ≤ 4,0	A
6,6 ≤ RRC ≤ 7,7	B	5,6 ≤ RRC ≤ 6,7	B	4,1 ≤ RRC ≤ 5,0	B
7,8 ≤ RRC ≤ 9,0	C	6,8 ≤ RRC ≤ 8,0	C	5,1 ≤ RRC ≤ 6,0	C
Empty	D	Empty	D	6,1 ≤ RRC ≤ 7,0	D
9,1 ≤ RRC ≤ 10,5	E	8,1 ≤ RRC ≤ 9,2	E	7,1 ≤ RRC ≤ 8,0	E
10,6 ≤ RRC ≤ 12,0	F	9,3 ≤ RRC ≤ 10,5	F	RRC ≥ 8,1	F
RRC ≥ 12,1	G	RRC ≥ 10,6	G	Empty	G

Part B: Wet grip classes U.K.

[F1 The wet grip class of C1 tyres must be determined on the basis of the wet grip index (G) according to the ‘ A ’ to ‘ G ’ scale specified in the table below and measured in accordance with Annex V.]

Textual Amendments

F1 Substituted by Commission Regulation (EU) No 228/2011 of 7 March 2011 amending Regulation (EC) No 1222/2009 of the European Parliament and of the Council with regard to the wet grip testing method for C1 tyres (Text with EEA relevance).

G	Wet grip class
1,55 ≤ G	A
1,40 ≤ G ≤ 1,54	B
1,25 ≤ G ≤ 1,39	C
Empty	D
1,10 ≤ G ≤ 1,24	E
G ≤ 1,09	F
Empty	G

Part C: External rolling noise classes and measured value U.K.

The external rolling noise measured value (N) must be declared in decibels and calculated in accordance with UNECE Regulation No 117 and its subsequent amendments.

The external rolling noise class must be determined on the basis of the limit values (LV) set out in Part C of Annex II of Regulation (EC) No 661/2009 as follows.

N in dB	External rolling noise class
N ≤ LV – 3
LV – 3 < N ≤ LV
N > LV