(1)Each of the First-tier Tribunal and the Upper Tribunal may review a decision made by it in any matter in a case before it.
(2)A decision is reviewable—
(a)at the Tribunal’s own instance, or
(b)at the request of a party in the case.
(3)But—
(a)there can be no review under this section of an excluded decision,
(b)Tribunal Rules may make provision—
(i)excluding other decisions from a review under this section,
(ii)otherwise restricting the availability of a review under this section (including by specifying grounds for a review).
(4)The exercise of discretion whether a decision should be reviewed under this section cannot give rise to a review under this section or to an appeal under section 46 or 48.
(5)A right of appeal under section 46 or 48 is not affected by the availability or otherwise of a review under this section.