(40) In order to strengthen the enforcement of the rules of this Regulation, each supervisory authority should have the power to impose penalties including administrative fines for any infringement of this Regulation, in addition to, or instead of any other appropriate measures pursuant to this Regulation. This Regulation should indicate infringements and the upper limit and criteria for setting the related administrative fines, which should be determined by the competent supervisory authority in each individual case, taking into account all relevant circumstances of the specific situation, with due regard in particular to the nature, gravity and duration of the infringement and of its consequences and the measures taken to ensure compliance with the obligations under this Regulation and to prevent or mitigate the consequences of the infringement. For the purpose of setting a fine under this Regulation, an undertaking should be understood to be an undertaking in accordance with Articles 101 and 102 of the Treaty.