(1)In this Chapter expressions used in Chapter II have, subject to subsections (2) and (3) below, the same meanings as in that Chapter.
(2)In this Chapter—
" district valuer ", in relation to any dwelling-house, means an officer of the Commissioners of Inland Revenue who is for the time being appointed by the Commissioners to be, in relation to the valuation list for the area in which the dwelling-house is situated, the valuation officer or deputy valuation officer, or one of the valuation officers or deputy valuation officers;
" flat", " house " and " relevant time " have the meanings given by section 3, and " dwelling-house " the extended meaning given by subsection (4) of that section ;
" landlord ", except in subsections (1) and (2) of section 2, does not include any body specified in those subsections ; and
" the right to buy " and " the right to a mortgage " have the meanings given by section 1 (2).
(3)References in this Chapter to a secure tenancy or a secure tenant are, in relation to any time before the commencement of Chapter II, references to a tenancy which would have been a secure tenancy if Chapter II had then been in force or to a person who would then have been a secure tenant; and for the purpose of determining whether a person would have been a secure tenant and his tenancy a secure tenancy—
(a)an authority not within the definition of " local authority" in section 50(1) shall be deemed to have been a local authority within that definition if it was the predecessor of such an authority; and
(b)a housing association shall be deemed to have been registered under Part II of the 1974 Act if it was so registered at the commencement of Chapter II.