# Commission Regulation (EU) No 351/2012 of 23 April 2012 implementing Regulation (EC) No 661/2009 of the European Parliament and of the Council as regards type-approval requirements for the installation of lane departure warning systems in motor vehicles, Division 2.5.1

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

Drive the vehicle at a speed of 65 km/h +/- 3 km/h into the centre of the test lane in a smooth manner so that the attitude of the vehicle is stable.
Maintaining the prescribed speed, gently drift the vehicle, either to the left or the right, at a rate of departure of between 0,1 and 0,8 m/s so that the vehicle crosses the lane marking. Repeat the test at a different rate of departure within the range 0,1 and 0,8 m/s.
Repeat the above tests drifting in the opposite direction.

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Source: https://www.legislation.gov.uk/eur/2012/351/annex/II/division/2/division/2.5/division/2.5.1 (the official version)
Page: https://openlegislation.uk/eu-regulation-2012-351/annex-II/division-2/division-2.5/division-2.5.1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.