20B. (1) Where, immediately before the coming into operation of section 2 (a) of the Residential Tenancies (Miscellaneous Provisions) Act 2026, section 24C applied to a tenancy, section 24C shall continue to apply to the tenancy as if that Act had not been enacted.

(2) Where a tenancy commences on or after 1 March 2026, then any review of the rent under the tenancy shall be carried out as if subsections (4) to (6) of section 20 had not been enacted.]