Exhaust systems containing fibrous materials need not be conditioned as prescribed in Annex 5 to UN Regulation No 51.
Córais sceite a bhfuil ábhar snáithíneach iontu, ní gá iad a chóiriú mar a leagtar síos in Iarscríbhinn 5 a ghabhann le Rialachán Uimh. 51.