for vessels between 18 and 24 metres in overall length, provided that the power in kW of the new or modernised engine is at least 30 % lower than that of the current engine.
i gcás soithí atá idir 18 mhéadar agus 24 mhéadar ar fhad iomlán ar an gcoinníoll go mbeidh ar a laghad 30 % níos lú cumhachta san inneall nua nó athchóirithe ná mar a bhí sa seancheann.