1. Processing of operational personal data shall be lawful only if and to the extent that processing is necessary for the performance of a task carried out by Union bodies, offices and agencies when carrying out activities which fall within the scope of Chapter 4 or Chapter 5 of Title V of Part Three TFEU and that it is based on Union law.
2. Specific Union legal acts regulating processing within the scope of this Chapter shall specify at least the objectives of processing, the operational personal data to be processed, the purposes of the processing and the time limits for storage of the operational personal data or for periodic review of the need for further storage of the operational personal data.