2. By 1 February 2023 or within 150 working days of the date of receipt of a notification pursuant to paragraph 9, the certifying authority shall issue a draft certification decision in respect of natural gas storage system operators that operate underground natural gas storage facilities with a capacity of over 3,5 TWh where, regardless of the number of natural gas storage system operators, total natural gas storage facilities were filled on 31 March 2021 and on 31 March 2022 at a level which, on average, was less than 30 % of their maximum capacity.
With respect to natural gas storage system operators as referred to in the first subparagraph, the certifying authority shall make its best efforts to issue a draft certification decision by 1 November 2022.
With respect to natural gas storage system operators other than those referred to in the first subparagraph, the certifying authority shall issue a draft certification decision by 2 January 2024 or within 18 months of the date of receipt of a notification pursuant to paragraph 8 or 9.