Article 2
1. Member States may maintain or introduce provisions more favourable than those laid down in this Directive. 2. The implementation of this Directive shall under no circumstances constitute sufficient grounds for justifying a reduction in the general level of protection of workers in the fields covered by this Directive. This shall be without prejudice to the rights of Member States and social partners to lay down, in the light of changing circumstances, legislative, regulatory or contractual arrangements different from those prevailing at the time of the adoption of this Directive, provided that the minimum requirements laid down in this Directive are complied with. 3. The application and interpretation of this Directive shall be without prejudice to any Union or national provision, custom or practice providing for more favourable conditions for the workers concerned.