(1) Passports and passport substitutes may also be used as proof of identity in the private sector.
(2) Serial numbers may not be used in such a way that it is possible to access personal data from data files or to link data files.
(3) Passports may not be used for automated searches of personal data or for automated storage of personal data.
(4) Transport operators may electronically read and process personal data from the passport’s machine-readable zone only if they are required by international agreements or entry regulations to assist with controls in international travel and to transmit personal data. Biometric data may not be read. The data shall be deleted as soon as they are no longer needed to fulfil these obligations.