(20)For similar considerations, it is also appropriate to exclude from the scope of this Directive public bodies under national law. Member States should also be able to limit the access to preventive restructuring frameworks to legal persons, since the financial difficulties of entrepreneurs may be efficiently addressed not only by means of preventive restructuring procedures but also by means of procedures which lead to a discharge of debt or by means of informal restructurings based on contractual agreements. Member States with different legal systems, where the same type of entity has a different legal status in those legal systems, should be able to apply one uniform regime to such entities. A preventive restructuring framework laid down pursuant to this Directive should not affect claims and entitlements against a debtor that arise from occupational pension systems if those claims and entitlements accrued during a period prior to the restructuring.