c. it appears to be impossible or would involve a disproportionate effort to ask for express consent, and d. sufficient guarantees are provided to ensure that the processing does not adversely affect the individual privacy of the data subject to a disproportionate extent. 3. Processing referred to under (1)(e) must be notified to the European Commission. This notification shall be made by Our Minister concerned where the processing is provided for by law. The Data Protection Commission shall make the notification in the case that it has granted an exemption for the processing. Article 24 1. A number that is required by law for the purposes of identifying a person may only be used for the processing of personal data in execution of the said law or for purposes stipulated by the law. 2. Cases other than those referred to under (1) can be designated by general administrative regulation in which a number to be indicated in this connection, as referred to under (1), can be used. More detailed rules may be laid down in this connection concerning the use of such a number. CHAPTER 3. CODES OF CONDUCT Article 25 1. An organisation or organisations planning to draw up a code of conduct may request the Data Protection Commssion to declare that, given the particular features of the sector or sectors of society in which these organisations are operating, the rules contained in the said code properly implement this Act or other legal provisions on the processing of personal data. Where a code of conduct provides for the arrangement of disputes about its observance, the Commission may only issue a declaration, if guarantees have been provided for its independent character. 2. The provisions of (1) are likewise applicable to amendments or extensions to existing codes of conduct. 3. The Commission shall only consider requests where, in its opinion, the requester or requesters are sufficiently representative and the sector or sectors concerned are sufficiently precisely defined in the code. 4. A decision on a request referred to under (1) shall be deemed to be equivalent to a decision within the meaning of the General Administrative Regulations Act (Algemene wet bestuursrecht). This decision shall be arrived at in accordance with the procedure laid down by Section 3.4 of that Act. The decision must be taken within a reasonable period of time, it being understood that this period must be no longer than thirteen weeks.