(1) Where -

(a) an aircraft operator ("A") with a registered office or a place of residence in the area of a regulator, in the course of the 2021-2025 allocation period, changes the address of its registered office or place of residence to the area of a different regulator ("R"); and

(b) A's registered office or place of residence is in the area of R at the end of the 2021-2025 allocation period,

R is the regulator of A from the beginning of the 2026-2030 allocation period.

(2) Where -

(a) an aircraft operator ("B") which did not have a registered office or a place of residence in the United Kingdom at the beginning of the 2021-2025 allocation period acquires a registered office or a place of residence in the United Kingdom in the course of that period; and