Article 35 2.

the application states the reasons why the new technologies or new concepts make the engine type or engine family incompatible with one or more of the requirements of this Regulation;

the application describes the environmental implications of the new technologies or new concepts and the measures taken in order to ensure a level of environmental protection that is at least equivalent to the level provided by the requirements of this Regulation from which exemption is sought;

test descriptions and results are presented which prove that the condition in point (b) is met.