Article 4 3.

Subject to the dates of phases of application set out in Annex III to this Regulation, Member States shall, on grounds relating to the permissible sound level, consider certificates of conformity for new vehicles to be no longer valid for the purposes of Article 26 of Directive 2007/46/EC, and shall prohibit the registration, sale and entry into service of such vehicles where such vehicles do not comply with this Regulation.