Article 6 4.

Member States shall ensure that the monitoring of entities under an authorization is limited to that necessary to ensure compliance with the conditions, requirements and obligations referred to in paragraph 1. In particular, they shall take the measures necessary to ensure that no entity is required, by any law, regulation or administrative requirement, or by any agreement or undertaking, to provide information on its intended or actual sources of procurement, except at the request of the competent authorities and exclusively with a view to the objectives set out in Article 36 of the Treaty.