# Commission Delegated Regulation (EU) 2015/68 of 15 October 2014 supplementing Regulation (EU) No 167/2013 of the European Parliament and of the Council with regard to vehicle braking requirements for the approval of agricultural and forestry vehicles (Text with EEA relevance), Division 2.7

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

In the case of tractors authorised to tow vehicles of category R3 or R4 fitted with compressed-air braking systems, in addition to the requirements in point 2.6., the prescriptions in point 2.2.1.17.2.1 of Annex I shall be verified by conducting the following test:
2.7.1. by measuring the pressure at the extremity of a pipe 2,5 m long with an internal diameter of 13 mm which shall be joined to the coupling head of the supply line;
2.7.2. by simulating a failure of the control line at the coupling head;
2.7.3. by actuating the service braking control device in 0,2 seconds, as described in point 2.3.

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Source: https://www.legislation.gov.uk/eur/2015/68/annex/III/division/2/division/2.7 (the official version)
Page: https://openlegislation.uk/eu-regulation-2015-68/annex-III/division-2/division-2.7
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.