1. The determinations and publications of the annual volumes to be auctioned and of the bidding windows, volumes, dates, auctioned product, payment and delivery dates in connection with individual auctions pursuant to Articles 10 to 13 and Article 32(4) shall not be modified except for adjustments due to any of the following:
(a)
the cancellation of an auction pursuant to Article 7(5) and (6), Article 9 and Article 32(5);
(b)
any suspension of an auction platform other than the auction platforms appointed pursuant to Article 26(1) or (2) of this Regulation provided for in the Commission regulation adopted pursuant to Article 19(3) of Directive 2003/87/EC;
(c)
any decision by a Member State made pursuant to Article 30(8);
(d)
any settlement failure referred to in Article 45(5);
(e)
any allowances remaining in the special reserve referred to in Article 3f of Directive 2003/87/EC;
(f)
the cessation of operations of an installation pursuant to Article 10a(19) of Directive 2003/87/EC, any adaptation of the level of free allocation pursuant to Article 10a(20) of that Directive or allowances remaining in the reserve for new entrants provided for in Article 10a(7) of that Directive;
(g)
any unilateral inclusion of additional activities and gases pursuant to Article 24 of Directive 2003/87/EC;
(h)
any measures adopted pursuant to Article 29a of Directive 2003/87/EC;
(i)
the entry into force of amendments to this Regulation or to Directive 2003/87/EC.
2. Where the manner in which a modification is to be implemented is not provided for in this Regulation, the auction platform concerned shall not implement that modification until it has previously consulted the Commission and obtained its opinion thereon. The auction platform concerned shall take the utmost account of the Commission's opinion.