5.—(1) Where the European Commission approves the preliminary total annual amount notified under paragraph 4(1), the regulator must calculate the final total annual amount of allowances allocated to the installation concerned.
(2) The regulator must, as soon as is reasonably practicable, notify the final total annual amount to—
(a)the operator;
(b)the authority;
(c)the registry administrator; and
(d)the Secretary of State (where the Secretary of State is not the authority).
(3) For the purpose of this paragraph, the final total annual amount is the preliminary total annual amount, adjusted annually by the linear reduction factor referred to in Article 10a(7) of the Directive (using the preliminary total annual amount for 2013 as a reference).