The series of amendments of the UN Regulations that apply on a compulsory basis are listed in Annex IV to Regulation (EC) No 661/2009.
Na leasuithe ar na Rialacháin de chuid NA a bhfuil feidhm éigeantach leo, tá siad liostaithe in Iarscríbhinn IV a ghabhann le Rialachán (CE) Uimh. 661/2009.