Article 15 2.

Where an OEM does not follow the instructions referred to in paragraph 1 of this Article, or modifies an engine in the course of its installation in non-road mobile machinery in a manner that adversely affects the engine's performance with regard to its gaseous and particulate pollutant emissions, that OEM shall be considered to be a manufacturer for the purposes of this Regulation and shall, in particular, be subject to the obligations laid down in Articles 8 and 9.