3. (1) This paragraph explains for the purposes of this Part of this Schedule what is meant by a “relevant associate” in a case where a [F1803 person F1803] (“the opter”) exercises an option to tax in relation to any building or land.
(2)A [F1804 personF1804] is a relevant associate of the opter if under sections 43A to 43D (groups of companies) the [F1804 personF1804] —
(a)was treated as a member of the same group as the opter at the time when the option first had effect,
(b)has been so treated at any later time when the opter had a relevant interest in the building or land, or
(c)has been treated as a member of the same group as a [F1805 personF1805] within paragraph (a) or (b) of this sub-paragraph at a time when [F1806 that personF1806] had a relevant interest in the building or land.
(3) But a [F1807 person (“P”) F1807] ceases to be a relevant associate of the opter in relation to the building or land in the following circumstances.
(4)[F1808 PF1808] ceases to be a relevant associate of the opter in relation to the building or land at the time when all of the following conditions are first met—
(a)[F1809 PF1809] has no relevant interest in the building or land [F1810 ,
(aa)where [F1811 PF1811] has disposed of such an interest, it is not the case that a supply for the purposes of the charge to VAT in respect of the disposal—
(i)is yet to take place, or
(ii)would be yet to take place if one or more conditions (such as the happening of an event or the doing of an act) were to be met,F1810]
(b)[F1812 PF1812] or the opter is not treated under sections 43A to 43D as a member of the group mentioned above, and
(c)[F1813 PF1813] is not connected with any person who has a relevant interest in the building or land where that person is the opter or another relevant associate of the opter.
(5)[F1814 PF1814] also ceases to be a relevant associate of the opter in relation to the building or land if [F1814 PF1814] —
(a)meets conditions specified in a public notice (see paragraph 4), or
(b)gets the prior permission of the Commissioners (also, see that paragraph).
The time when [F1815 PF1815] ceases to be a relevant associate of the opter is determined in accordance with that paragraph.
(6) In this paragraph “relevant interest in the building or land” means an interest in, right over or licence to occupy the building or land (or any part of it).