Subsection (1) provides that this Act, once it receives Royal Assent, comes into force on such day as the Secretary of State may by regulations appoint, subject to subsections (2)-(6) which make specific provision in relation to the coming into force of certain sections, Chapters or Parts. In relation to Part 1 Chapter 1 of the Act, the day that comes into force in relation to a particular tenancy is known as "the commencement date" (please see section 146, subsection(3)).
	Subsection (2) provides that this Act comes into force for the purpose of making regulations on the day which it is passed.
	Chapter 4 of Part 1 (Discrimination in the rental market: Wales) comes into force on such day as the Welsh Ministers by order made by statutory instrument appoint.
	Chapter 5 of Part 1 (Discrimination in the rental market: Scotland) comes into force on such day as the Scottish Ministers by regulations appoint.
	Subsection (5) provides that Chapter 2 of Part 1 (which outlines tenancies that cannot be assured tenancies), section 59 (which omits Part 3 from the Housing and Planning Act 2016), section 110 (Duty to report), and Chapter 3 of Part 4 (Investigatory Powers) of the Act come into force two months after the day the Act is passed.
	Subsection (6) provides that section 110 (Lead enforcement authority) and Part 5 (General) comes into force on the day in which this Act is passed.
	Subsection (7) provides that different days may be appointed under this section for different purposes, subject to subsection (8).
	Subsection (8) provides a limitation to subsection (7) in relation to the commencement of Chapter 1 of Part 1. It provides that different days may be appointed for different purposes in relation to that Chapter only to the extent that one day is appointed for the purposes of all assured tenancies that are not social housing assured tenancies (defined in subsection (8)). For assured tenancies that are not social housing assured tenancies the Act will come into force on the same day. This means that there will be one "commencement date" where the Act applies to both new and existing tenancies. Whilst one or more different days may be appointed to commence Chapter 1 Part 1 in relation to social housing assured tenancies.
Part 5: General Section 145: Commencement Effect