(3)Standardised forms should be introduced and made available to competent authorities to facilitate their communication when requesting and notifying information from and to each other, in order to ensure consistent and efficient cooperation. Those standard forms should be flexible enough to allow competent authorities to introduce the relevant explanations and information, upon request, and on their own initiative, information that they consider to be essential. It is desirable to introduce deadlines to avoid undue delays regarding the request, exchange and notification of information among competent authorities.