Euro 1 91/441/CEE – 91/542/CEE punto 6.2.1.A – 93/59/CEE 1.1.1993
Euro 2 91/542/CEE punto 6.2.1.B – 94/12/CE – 96/1/CE – 96/44/CE – 96/69/CE – 98/77/CE 1.1.1997
Euro 3 98/69/CE – 98/77/CE rif 98/69/CE A – 1999/96/CE A – 1999/102/CE rif. 98/69/CE – 2001/1/CE rif 98/69/CE – 2001/27/CE A – 2001/100/CE A – 2002/80/CE A – 2003/76/CE A 1.1.2001
Euro 4 98/69/CE B – 98/77/CE rif. 98/69/CE B – 1999/96/CE B – 1999/102/CE rif. 98/69/CE B – 2001/1/CE rif. 98/69 CE B – 2001/27/CE B – 2001/100/CE B – 2002/80/CE B – 2003/76/CE B – 2005/55/CE B1 – 2006/51/CE rif. 2005/55/CE B1 1.1.2006
Euro 5 2005/55/CE B2 – 2006/51/CE rif. 2005/55/CE B2 – 2006/51/CE rif. 2005/55/CE B2 (ecol. migliorato) oppure Riga C – 1999/96/CE fase III oppure Riga B2 o C – 2001/27/CE Rif. 1999/96 Riga B2 oppure Riga C – 2005/78/CE Rif 2005/55 CE Riga B2 oppure riga C 1.9.2009 per omologazione 1.1.2011 per immatricolazione