‘regeneration’ means an event during which emissions levels change while the exhaust after-treatment system's performance is being restored by design and which can be classified as continuous regeneration or infrequent (periodic) regeneration;
ciallaíonn “athghiniúint” teagmhas ina n-athraíonn leibhéil astaíochtaí le linn d'fheidhmíocht an chórais iarchóireála sceite a bheith á hathchóiriú trí dhearadh, agus is féidir a rangú mar athghiniúint leanúnach nó athghiniúint (thréimhsiúil) ainmhinic;