1A

This subsection applies to—

a

a decision of the Secretary of State under section 11, 12 or 17;

b

a reduced benefit decision under section 46;

c

a decision of an appeal tribunal on a referral under section 28D(1)(b).

1B

Where the Secretary of State revises a decision under section 12(1)—

a

he may (if appropriate) do so as if he were revising a decision under section 11; and

b

if he does that, his decision as revised is to be treated as one under section 11 instead of section 12(1) (and, in particular, is to be so treated for the purposes of an appeal against it under section 20).