(1)The Commissioner may, in relation to Scottish public authorities falling within particular classes—
(a)prepare and approve model publication schemes; or
(b)approve such schemes prepared by other persons.
(2)If an authority which falls within the class to which an approved model publication scheme relates adopts that scheme without modification, no further approval of the Commissioner is required so long as that model scheme remains approved; but the approval of the Commissioner is required in relation to any modification of the scheme by an authority.
(3)The Commissioner may—
(a)when approving a model publication scheme, provide that the approval expires at the end of a specified period; and
(b)at any time publish, in such manner as the Commissioner thinks fit, a notice revoking, as from the end of the period of six months beginning at that time, approval of such a scheme.
(4)The Commissioner, when—
(a)refusing to approve—
(i)under subsection (1)(b), a proposed model scheme; or
(ii)any such modification as is mentioned in subsection (2),
must state the reason for doing so; or
(b)revoking approval of a model publication scheme, must include in the notice under subsection (3)(b) a statement of the reason for doing so.