(30)In order to ensure the proper application of this Regulation, the power to adopt acts in accordance with Article 290 TFEU should be delegated to the Commission in respect of species-specific requirements for the marking of pet animals of the species listed in Part B of Annex I and species-specific preventive health measures against diseases or infections other than rabies affecting the species listed in Annex I, as well as to adopt rules for limiting the number of pet animals of the species listed in Part B of Annex I accompanying their owner during non-commercial movement and to amend Annexes II to IV. It is of particular importance that the Commission carry out appropriate consultations during its preparatory work, including at expert level. The Commission, when preparing and drawing up delegated acts, should ensure simultaneous, timely and appropriate transmission of relevant documents to the European Parliament and Council.