The competent authorities of the Member State to which the application for type-approval has been submitted shall, in respect of each type of vehicle unit, motion sensor, model record sheet or tachograph card which they approve, send within one month a copy of the type-approval certificate accompanied by copies of the relevant specifications, including those relating to the seals, to the authorities of the other Member States. Where the competent authorities do not approve the application for type-approval, they shall notify the authorities of the other Member States that approval has been refused and shall communicate the reasons for their decision.