Article 21 1.

The Member States, when implementing the Plans, as beneficiaries of funds under the Fund, shall take all the appropriate measures to protect the financial interests of the Union and to ensure that the use of the financial allocations in relation to measures and investments supported by the Fund, including those carried out by public or private entities other than vulnerable households, vulnerable micro-enterprises and vulnerable transport users in accordance with Article 9, complies with applicable Union and national law, in particular regarding the prevention, detection and correction of fraud, corruption and conflicts of interests. To that effect, the Member States shall provide an effective and efficient internal control system as further set out in Annex III and the recovery of amounts wrongly paid or incorrectly used. Member States may rely on their regular national budget management systems.