Sections 37 and 38 above shall apply for the purpose of excluding the application of section 50(1) above, but subject to the following modifications—
Section 50(1) shall not apply if the retiring tenant has at any time given any other notice under section 49(1) above in respect of the holding or a related holding and an application to become the tenant of the holding or a related holding has been duly made by any person under section 53 below in respect of that notice.
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If on the date of the giving of the retirement notice the tenancy is the subject of a valid notice to quit given before that date and including a statement that it is given for any such reason as is referred to in Case B, D or E (not being a notice to quit falling within section 38(3) above as applied by subsection (1) above), section 50(1) shall not apply unless one of the events mentioned in subsection (5) below occurs.
Those events are as follows—
Where one of the events mentioned in subsection (5) above occurs the relevant period shall for the purposes of sections 53(1) and 54(2) below be the period of one month beginning with the date on which the arbitrator's award is delivered to the tenant, with the date of the Tribunal's decision to withhold consent, or with the expiry of the said period for making an application (as the case may be).