"relevant authority"
in relation to—
| (a) | a public body referred to in paragraph (a) of the definition of "public body" in the national sphere of government, means— |
| (i) | in the case of the Office of the Presidency, the person designated in writing by the President; or |
| (ii) | in any other case, the Minister responsible for that public body or the person designated in writing by that Minister; |
| (b) | a public body referred to in paragraph (a) of the definition of "public body" in the provincial sphere of government, means— |
| (i) | in the case of the Office of a Premier, the person designated in writing by the Premier; or |
| (ii) | in any other case, the member of the Executive Council responsible for that public body or the person designated in writing by that member; or |
| (c) | a municipality, means— |
designated in writing by the Municipal Council of that municipality;