1. Member States shall ensure the availability of an adequate and effective enforcement procedure to guarantee compliance with this Directive, in relation to the requirements set out in Articles 4 and 5 and Article 7(1). In particular, Member States shall ensure that an enforcement procedure, such as the possibility of contacting an ombudsman, is in place to guarantee an effective handling of notifications or requests received as provided for in point (b) of Article 7(1) and to review the assessment referred to in Article 5.