for vessels between 12 and 18 metres in overall length, provided that the power in kW of the new or modernised engine is at least 20 % lower than that of the current engine;
i gcás soithí atá idir 12 mhéadar agus 18 mhéadar ar fhad iomlán ar an gcoinníoll go mbeidh ar a laghad 20 % níos lú cumhachta san inneall nua nó athchóirithe ná mar a bheadh sa seancheann;