63 Period of notice to quit
The period for which notice to quit shall be given shall be not less
than a period of seven days, together with an additional seven days for
each completed period of six months of occupation.
(2) Nothing in subsection (1) shall:
(a) require the giving of notice to quit for:
period exceeding fourteen days if the notice is given on any ground
specified in paragraph (c), (d), (e) or (f) of subsection (5) of
section 62 and not on any other ground,
(ii) a period exceeding thirty days if the notice is given on any other ground,
(iii) in the case of shared accommodation—a period exceeding fourteen days, or
(iv) a period exceeding seven days if the notice is given on the ground specified in section 62 (5) (d1), or
the giving of notice to quit for a period shorter than the period
which, but for this section, would be required.