12(1)Sub-paragraph (2) applies to a person if—
(a)he is a judge of the Upper Tribunal by virtue of appointment under paragraph 1(1) of Schedule 3, or
(b)he is a transferred-in judge of the Upper Tribunal, or
(c)he is a deputy judge of the Upper Tribunal, or
(d)he is a member of the Upper Tribunal by virtue of appointment under paragraph 2(1) of Schedule 3, or
(e)he is a transferred-in other member of the Upper Tribunal.
(2)Each person to whom this sub-paragraph applies—
(a)is to be assigned to at least one of the chambers of the Upper Tribunal, and
(b)may be assigned to different chambers of the Upper Tribunal at different times.
(3)A judge or other member of the Upper Tribunal to whom sub-paragraph (2) does not apply—
(a)may be assigned to one or more of the chambers of the Upper Tribunal, and
(b)may be assigned to different chambers of the Upper Tribunal at different times.
(4)The Senior President of Tribunals may assign a judge or other member of the Upper Tribunal to a particular chamber of the Upper Tribunal only with the concurrence—
(a)of the Chamber President of the chamber, and
(b)of the judge or other member.
(5)The Senior President of Tribunals may end the assignment of a judge or other member of the Upper Tribunal to a particular chamber of the Upper Tribunal only with the concurrence of the Chamber President of the chamber.
(6)Sub-paragraph (4)(a) does not apply where the judge, or other member, concerned is not assigned to any of the chambers of the Upper Tribunal.
(7)Sub-paragraphs (4)(a) and (5) do not apply where the judge concerned is within section 6(1)(a) to (d) (judges of Courts of Appeal, Court of Session and High Courts).
(8)Sub-paragraphs (4) and (5) do not apply where the judge concerned is the Senior President of Tribunals himself.