Without prejudice to national laws providing for the imposition of criminal penalties, Member States should lay down the rules on pecuniary penalties applicable to infringements of this Regulation and should take all measures necessary to ensure that they are implemented. Member States should ensure that pecuniary penalties provided for in their national law are effective, proportionate and dissuasive. Member States should, without delay, notify the Commission of those rules and of those measures and should notify it, without delay, of any subsequent amendment affecting them.