Paragraph 19 sets out key definitions for the purposes of Part 2 of Schedule 6, including definitions of "residential premises", the types of instrument to which Part 2 applies, what constitutes an "affected dwelling-house" for the purposes of Part 2, and what constitutes a "relevant" assured tenancy within the meaning of Part 2 both before and after commencement. Part 2 applies to leases of residential premises that were entered into before the commencement date, or on or after commencement under a contract entered into before that date. It applies to mortgages and insurance contracts entered into before commencement, or on or after commencement by acceptance of an offer made before commencement, and to section 106 obligations entered into before commencement.
	Paragraph 20 allows the parties to the instruments defined in paragraph 19 to vary or modify those instruments and makes the effects of provisions in Part 2 on those instruments subject to such variations or modifications.
	Paragraphs 21 and 23 ensure that, where a type of instrument defined in paragraph 19 permits or requires an affected dwelling-house to be let on a type of assured tenancy that is abolished by Chapter 1 of Part 1 of the Act, it may be let on a relevant assured tenancy.
	Paragraphs 22 and 24 ensure that, where a type of instrument defined in paragraph 19 permits or requires an affected dwelling-house to be let on a relevant assured tenancy, the terms of the instrument relating to the letting will remain the same after commencement as long as they are not inconsistent with any other provision in the Act or in regulations made under it.
	Paragraph 25 ensures that, where section 106 planning obligations require an affected dwelling-house to be let on a type of assured tenancy abolished by Chapter 1 of Part 1 of this Act, that requirement will be satisfied by letting it on a relevant assured tenancy.
	Paragraph 26 ensures that, where a section 106 planning obligation requires an affected dwelling-house to be let on a relevant assured tenancy, the terms of the instrument relating to the letting will remain the same after commencement as long as they are not inconsistent with any other provision in the Act or regulations made under it.
	Paragraph 27 provides that, where a section 106 planning obligation to which Part 2 of Schedule 6 applies met the requirements under regulation 122(2) of the Community Infrastructure Levy ("CIL") Regulations 2010 before commencement, any effect of Part 2 is to be disregarded when considering whether it continues to meet those requirements after commencement.
	Paragraph 28 ensures that where a lessee has sublet a property, the sublease has become a relevant assured tenancy by virtue of Part 2 of Schedule 6, and the lessee is unable to return the dwelling-house to the lessor at the end of the lease free of the relevant assured tenancy, this will not constitute a breach of the lease.
	Paragraph 29 clarifies that in Part 2 of Schedule 6 references to a type of instrument defined in paragraph 19, and references to the terms in such an instrument, include the terms of any agreement relating to the instrument and any document or communication giving or refusing consent for letting in relation to a type of tenancy.
	Paragraph 30 clarifies that, where appropriate, references to letting an affected dwelling-house are or include references to subletting it under any lease or inferior lease of those premises.
	Paragraph 31 explains how Part 2 of Schedule 6 applies where (i) an instrument gives discretion whether to let an affected dwelling-house but requires it to be let under a tenancy of a particular description if it is let; and, (ii) there are two or more affected dwelling-houses in relation to the instrument.
	Paragraph 32 allows the Secretary of State to make regulations disapplying or modifying the effect of Part 2 of Schedule 6 on specified descriptions of the types of instrument defined in paragraph 19.
	Paragraphs 33 sets out the meaning of "permitting" letting as used in Part 2 of Schedule 6.
	Paragraph 34 sets out definitions of terms used in Part 2 of Schedule 6.
Schedules Schedule 6: Part 2 – Existing instruments which permit or require letting etc Effect