1.Member States shall bring into force the laws, regulations and administrative provisions necessary to comply with this Directive before 18 December 1998. They shall forthwith inform the Commission thereof.
From the date referred to in the first subparagraph, Member States may no longer prohibit the first entry into service of vehicles complying with the provisions of this Directive or of certain of its chapters.
They shall apply these provisions from 17 June 1999.
However, the implementation of certain provisions in Chapters 5, 8 and 9 shall be deferred as specified in the said chapters.
2.When Member States adopt the measures referred to in paragraph 1, they shall contain a reference to this Directive or shall be accompanied by such reference on the occasion of their official publication. The methods of making such reference shall be laid down by Member States.