Section 148 provides that the Secretary of State may, by regulations made by statutory instrument, make transitional or saving provisions in connection with the coming into force of any provision of the Act (subsection (3)).
	This includes the power to make different provisions for different purposes (subsection (13)), and power to provide for the Act’s provisions to apply to tenancies, licences or advertising which began before the section came into force (subsection (7)(a)). It also includes the power to modify the effect of private legal instruments (such as leases, mortgage agreements or insurance contracts) that were entered into before the commencement date, where the Secretary of State is satisfied that such an instrument would not operate appropriately as a result of Part 1, Chapters 1 and 2 of the Act (see subsections (7)(b) and (8)-(11).
	Subsection (1) allows the Welsh Ministers to make regulations by secondary legislation to make transitional or saving provision in connection with the commencement of Chapter 4 of Part 1 (discrimination in the rental market: Wales). This includes power to state that a provision in Chapter 4, Part 1 to apply with modifications in relation to occupation contracts granted, renewed or continued, or advertising begun before the date on which Chapter 4 of Part 1 comes into force. Subsection (2) allows the Scottish Ministers to make transitional or saving provision by secondary legislation in connection with the commencement of Chapter 5 of Part 1 (discrimination in the rental market: Scotland) along the same lines in relation to existing tenancies.
	Subsection (6) ensures that the power to make transitional or saving provisions under subsection (3) by regulations to make such provision by amending or repealing any provision in Part 2 of Schedule 6 to the Act.
	Subsection (9) ensures that, when regulations under subsection (7)(b) change the effect of private legal instruments made before changes to legislation under section 140 regulations come into force, the parties to those documents can agree a different result instead of the default one provided by the legislation.
	Any statutory instrument made by the Secretary of State containing regulations falling within subsection (7)(b) will be subject to the affirmative procedure. This power can also be used to amend a transitional provision in Part 2 of Schedule 6 ,but regulations doing this must be subject to affirmative procedure.
	Circumstances in which the Secretary of State may consider that a private legal instrument will not operate appropriately in consequence of Part 1, Chapters 1 and 2 of the Act are set out in subsection (8) and include if provision within it would be obsolete or impractical, would have an unclear effect, would subject parties to more burdensome obligations than previously, or where it references any enactment as it had effect prior to their amendment by Part 1, Chapters 1 or 2 of the Act.
Part 5: General Section 148: Transitional provision Effect