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;
maidir leis na ceanglais nua is infheidhme i ndáil leis an gcineál innill a cheadaítear nó, i gcás inarb infheidhme, maidir leis an aicme inneall, i gcás ina mbeidh siad éigeantach maidir le cur ar an margadh agus i gcás nach féidir cineálcheadú AE a shíneadh nó a athbhreithniú dá réir sin;