(4)Directive 2009/65/EC requires the competent authorities of the UCITS home Member State to verify if the notification file is complete before they transmit the complete file to the competent authorities of the Member State in which the UCITS proposes to market its units. It also provides a UCITS with the right to access the market of a host Member State immediately after the complete notification file has been transmitted by the competent authorities of the UCITS home Member State to the competent authorities of a Member State where the UCITS proposes to market its units. In order to ensure legal certainty it is necessary to establish when the transmission of the complete notification file is considered to have taken place. Moreover, the procedure for the use of electronic communication shall require competent authorities of the UCITS home Member State to make sure that transmission of the complete documentation has taken place, before they notify a UCITS about the transmission pursuant to Article 93(3) of Directive 2009/65/EC. It is also necessary to set out procedures for dealing with technical problems that occur in the process of the transmission of the notification file between competent authorities of the UCITS home and host Member State.