1. This Article applies where the regulator:

(a) determines the activity level or historical activity level of a sub-installation or calculates the preliminary or final annual number of allowances to be allocated in respect of a sub-installation for a scheme year under Article 3a;

(b) calculates an adjustment to free allocation in respect of a sub-installation for a scheme year under Article 5 or 6; or

(c) does not calculate an adjustment to free allocation in respect of a heat or fuel benchmark sub-installation for a scheme year by virtue of paragraph 1 or 2 of Article 6.

2. Subject to Article 3(8), the regulator must as soon as reasonably practicable send to the UK ETS authority:

(a) the determination or calculation referred to in paragraph 1 (if any);

(b) the regulator's recalculation of the final annual number of allowances to be allocated in respect of the installation of which the sub-installation is part for the scheme year, taking account of the determination, calculation or adjustment referred to paragraph 1 (if any);