The Commission and the Board should encourage the drawing-up of voluntary codes of conduct, as well as the implementation of the provisions of those codes in order to contribute to the application of this Regulation. The Commission and the Board should aim that the codes of conduct clearly define the nature of the public interest objectives being addressed, that they contain mechanisms for independent evaluation of the achievement of those objectives and that the role of relevant authorities is clearly defined. Particular attention should be given to avoiding negative effects on security, the protection of privacy and personal data, as well as to the prohibition on imposing general monitoring obligations. While the implementation of codes of conduct should be measurable and subject to public oversight, this should not impair the voluntary nature of such codes and the freedom of interested parties to decide whether to participate. In certain circumstances, it is important that very large online platforms cooperate in the drawing-up and adhere to specific codes of conduct. Nothing in this Regulation prevents other service providers from adhering to the same standards of due diligence, adopting best practices and benefitting from the guidelines provided by the Commission and the Board, by participating in the same codes of conduct.