# Regulation (EU) No 168/2013 of the European Parliament and of the Council of 15 January 2013 on the approval and market surveillance of two- or three-wheel vehicles and quadricycles (Text with EEA relevance), Article 19: Prohibition of defeat devices

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

The use of defeat devices that reduce the effectiveness of safety, electromagnetic compatibility, the on-board diagnostics system, sound abatement or pollutant emission abatement systems shall be prohibited. An element of design shall not be considered a defeat device if any of the following conditions is met:
(a) the need for the device is justified in terms of protecting the engine against damage or accident and ensuring safe operation of the vehicle;
(b) the device does not function beyond the requirements of engine starting;
(c) the operating conditions are included to a substantial extent in the test procedures for verifying if the vehicle complies with this Regulation and with the delegated and implementing acts adopted pursuant to this Regulation.

---
Source: https://www.legislation.gov.uk/eur/2013/168/article/19 (the official version)
Page: https://openlegislation.uk/eu-regulation-2013-168/article-19
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.