(29)Proof of compliance with minimum standards of physical and mental fitness should be provided when the driving licence is issued, and periodically thereafter. Such regular monitoring, in accordance with national rules of compliance with minimum standards, contributes to the free movement of persons, avoids distortions of competition and takes into account the responsibility of drivers. The national rules of compliance with minimum standards should consist of a medical examination at issuance and at renewal of a driving licence. That examination could be performed by general practitioners or by any other competent medical authority or health sector professional, as established within the law of each Member State.