# Regulation (EU) 2018/858 of the European Parliament and of the Council of 30 May 2018 on the approval and market surveillance of motor vehicles and their trailers, and of systems, components and separate technical units intended for such vehicles, amending Regulations (EC) No 715/2007 and (EC) No 595/2009 and repealing Directive 2007/46/EC (Text with EEA relevance), Division 4.5

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

The requirements in points 4.1(a), 4.2(a), 4.2(b), 4.3(a), 4.3(b) on simultaneous driven axles are considered to have been fulfilled if one of the following conditions is fulfilled:
(a)the transmission of the tractive power to all axles is performed by mechanical means only which provides traction in heavy off-road; or
(b)each of the wheels of the axle in question is driven by an individual hydraulic or electric motor.
If the axles according to the requirements in points 4.1(a), 4.2(a), 4.2(b), 4.3(a), 4.3(b) on simultaneous driven axles are not powered by mechanical means only, the propulsion of the individual wheels shall be designed for heavy off-road operation. In such case it shall be ensured that at least 75 % of total tractive power can be transmitted to the wheel in question when the tractive conditions under the other wheels do not allow to transmit the tractive power properly via these wheels.
The auxiliary drive system according to point 4.5(b) shall not allow to disengage the tractive power automatically until the vehicle reaches 75 % of the maximum vehicle design speed or reaches 65 km/h.

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Source: https://www.legislation.gov.uk/eur/2018/858/annex/I/part/A/division/4/division/4.5 (the official version)
Page: https://openlegislation.uk/eu-regulation-2018-858/annex-I/part-A/division-4/division-4.5
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.