1. Where the preliminary annual number of allowances to be allocated in respect of an installation has been calculated under Article 16, the regulator must, as soon as reasonably practicable after the publication of the matters referred to in Article 16a(5):

(a) calculate the final annual number of allowances to be allocated in respect of each installation and each sub-installation of each installation:

(i) in the case of a deemed application for free allocation in the 2021-2025 allocation period, for each scheme year in the 2021-2025 allocation period;

(ii) in the case of an application for free allocation in the 2026-2030 allocation period under Article 4, for each scheme year in the 2026-2030 allocation period; and

(b) send the calculation to the UK ETS authority.

2. The final annual number of allowances to be allocated for a scheme year in respect of a sub-installation is the preliminary annual number of allowances calculated under Article 16 (including any corrections required under Article 16(11)) multiplied by:

(a) in the case of sub-installation of an installation other than an electricity generator, the cross-sectoral correction factor for the scheme year (if any) determined under Article 16a;