Article 30 2.

where new requirements applicable to the approved engine type or, where applicable, to the engine family become mandatory for its placing on the market and it is not possible to extend or revise the EU type-approval accordingly;

where production of the approved engine type or engine family is definitively and voluntarily discontinued;

where the validity of the EU type-approval expires by virtue of a restriction, in accordance with Article 35(3);

where the EU type-approval has been withdrawn in accordance with Articles 26(5), 39(1) or 40(3).