Where a legal person modifies an engine in such a way that it no longer complies with the emission limits applicable to it according to its category or sub-category, that person shall be considered to be responsible for re-establishing compliance with those emission limits.
I gcás ina modhnóidh duine dlítheanach inneall sa chaoi is nach gcomhlíonann sé a thuilleadh na teorainneacha astaíochta is infheidhme maidir leis an inneall sin de réir a chatagóire nó a fhochatagóire, measfar an duine sin a bheith freagrach as a comhlíonadh na dteorainneacha astaíochta sin a athbhunú.