Subsection (1) sets out that anybody who is marketing a property as available for rent must not do so unless there is an active entry on the database, both (a) for the landlord or prospective landlord of that property, and (b) for the property that is being marketed. Section 99 defines what is meant by "marketing a dwelling" and provides a definition of letting agency work for the purposes of these restrictions.
	Subsection (2) adds that any written advertisement for a property as available for rent must include the unique identifiers which are allocated to the landlord and property upon registration as set out in section 84.
	Subsection (3) establishes that all properties being privately let by a residential landlord t must be registered on the database. Subparagraphs (a) and (b) put a duty on residential landlords to ensure that there are active entries both for themselves as landlord and for each dwelling they are letting out, and that the entries meet the requirements imposed by regulations made under section 78.
	Subsection (4)(a) gives the Secretary of State the power to make regulations which specify circumstances in which the duty under subsection (3) can apply to specified persons other than the landlord, and in which (4)(b) a landlord may be relieved of the duty in general or for a period specified in accordance with regulations.
	Subsection (5) makes clear that any breaches in relation to this section have no impact on the validity or enforceability of a residential tenancy or other contracts where other laws would render them invalid or unenforceable for reasons of illegality.
Part 2: Residential landlord Chapter 3: The Private Rented Sector Database Section 82: Restrictions on marketing, advertising and letting dwellings Effect