1. By 15 July 2026, the Commission shall publish a notice in the Official Journal of the European Union concerning whether one or both of the following conditions have been met:

(a) the average TTF gas price for the six calendar months ending 30 June 2026 was higher than the average TTF gas price in February and March 2022;

(b) the average Brent crude oil price for the six calendar months ending 30 June 2026 was more than twice the average Brent crude oil price during the five preceding years; the five-year reference period shall be the five-year period that ends before the first month of the period of six calendar months.

2. Where one or both of the conditions referred to in paragraph 1 are met, the following rules shall apply:

(a) by way of derogation from Article 30c(1), the first year for which the Union-wide quantity of allowances is established shall be 2028 and, by way of derogation from Article 30c(3), the first year for which the Union-wide quantity of allowances is adjusted shall be 2029;

(b) by way of derogation from Article 30d(1) and (2), the start of auctioning of allowances under this Chapter shall be postponed to 2028;