4.If, after the adoption by the Council or by the Commission of aharmonisation measure, a Member State deems it necessary to maintain national provisions on grounds of major needs referred to in Article 30, or relating to the protection of the environment or the working environment, it shall notify the Commission of these provisions as well asthe grounds for maintaining them.
4.Más rud é, tar éis don Chomhairle nó don Choimisiún beartcomhchuibhithe a ghlacadh, go measann Ballstát gur gá forálachanáisiúnta a choimeád ar bun de bharr riachtanais thábhachtacha dádtagraítear in Airteagal 30 nó a bhaineann le cosaint an chomhshaoilnó na timpeallachta oibre, cuirfidh sé na forálacha sin, maille leisna forais atá lena gcoimeád ar bun, in iúl don Choimisiún.