# Commission Regulation (EU) No 109/2011 of 27 January 2011 implementing Regulation (EC) No 661/2009 of the European Parliament and of the Council as regards type-approval requirements for certain categories of motor vehicles and their trailers as regards spray suppression systems (Text with EEA relevance), Division 8.2.2

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

In the case of single or multiple axles where the distance between the tyres on adjacent axles exceeds 300 mm, the lower edge of the spray-suppression device fitted to the outer valance must have the following maximum dimensions and radii, starting from the centre of the wheel (Figures 6 and 7 of Annex VI):
(a)
Axles fitted with steered wheels or self-steering wheels:
from the front edge (towards the front of the vehicle) (tip C at 30°)
to the rear edge (towards the rear of the vehicle) (tip A at 100 mm)
Rv ≤ 1,05 R
(b)
Axles fitted with non-steered wheels:
from the front edge (tip C at 20°)
to the rear edge (tip A at 100 mm)
Rv ≤ 1,00 R
where
Ris the radius of tyre fitted to the vehicle;
Rv the radial distance from the lowest edge of the outer valance to the centre of the wheel.

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Source: https://www.legislation.gov.uk/eur/2011/109/annex/IV/division/3/division/8/division/8.2/division/8.2.2 (the official version)
Page: https://openlegislation.uk/eu-regulation-2011-109/annex-IV/division-3/division-8/division-8.2/division-8.2.2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.