1. Any Member State not participating in the joint action as provided in Article 26(1) may appoint its own auction platform for the auctioning of its volume of allowances covered by Chapters II and III of Directive 2003/87/EC to be auctioned as provided for in Article 31(1) of this Regulation.
2. [deleted]
3. Member States not participating in the joint action as provided in Article 26(1) may appoint the same auction platform or separate auction platforms for the auctioning pursuant to Article 31(1).
4. Any Member State not participating in the joint action as provided in Article 26(1), shall inform the Commission of its decision not to participate in the joint action as provided in Article 26(1) but to appoint its own auction platform pursuant to paragraph 1 of this Article within 3 months of the entry into force of this Regulation.
5. Any Member State not participating in the joint action as provided in Article 26(1) shall select its own auction platform appointed pursuant to pa