(1) The Secretary may issue written directions to the Authority in relation to the following matters—
(a) the keeping of the Central Register;
(b) the amendment or correction of information in the Central Register;
(c) the keeping of the Voluntary Register;
(d) the provision of donor-linking services under section 73C;
(e) requests for records under section 56B;
(f) obtaining information under section 56J;
(g) the provision of counselling services;
(h) the interpretation of guidelines issued under section 100A.
(2) The Authority must comply with a direction issued under subsection (1).