(1) The Authority may, in accordance with this Division, make guidelines on the way in which—
(a) a provision of this Act or of a regulation made under this Act would, in the Authority's opinion, apply to a class of persons or to a set of circumstances; or
(b) a discretion of the Authority under a provision of, or regulation made under, this Act would be exercised.
(2) For the purposes of this section, the Authority exercises a discretion if the Authority—
(a) forms an opinion; or
(b) attains a state of mind; or
(c) makes a determination; or
(d) exercises a power; or
(e) refuses or fails to do any of those things.