1. Member States may adopt or maintain provisions on the acquisition of supplementary pension rights for workers, on the preservation of supplementary pension rights of outgoing workers and on active scheme members' and deferred beneficiaries' right to information which are more favourable than those set out in this Directive.

2. The transposition of this Directive shall not under any circumstances be used as a reason for reducing existing rights for the acquisition and preservation of supplementary pensions or to scheme members' or beneficiaries' right to information in the Member States.