Article 15a Implementation and enforcement
1. Member States shall lay down the rules on penalties, including criminal sanctions where appropriate, applicable to infringements of the national provisions adopted pursuant to this Directive and shall take all measures necessary to ensure that they are implemented. The penalties provided for must be effective, proportionate and dissuasive and may be applied to cover the period of any breach, even where the breach has subsequently been rectified. The Member States shall notify those provisions to the Commission by 25 May 2011, and shall notify it without delay of any subsequent amendment affecting them.
2. Without prejudice to any judicial remedy which might be available, Member States shall ensure that the competent national authority and, where relevant, other national bodies have the power to order the cessation of the infringements referred to in paragraph 1.
3. Member States shall ensure that the competent national authority and, where relevant, other national bodies have the necessary investigative powers and resources, including the power to obtain any relevant information they might need to monitor and enforce national provisions adopted pursuant to this Directive.