Matters arising from referral to rent officer or application to First-tier Tribunal 43S Tenant’s liability for underpaid rent (1) This section applies where–– (a) the rent payable under a current tenancy has been changed by an order 40 made under— (i) section 43M(2) or (3), 34 Housing (Scotland) Bill Part 1—Rent Chapter 2—Rent control areas: modifications of the 2016 Act (ii) section 43P(2) or (3), or (iii) section 43R(2)(b) or (4)(a) or (b), (b) the effective date...