4. Unless the contrary intention appears, the provisions of Parts II, III and V apply to the Legislative Assembly Secretariat as if—
(a) a reference in those provisions to a department included a reference to the Legislative Assembly Secretariat;
(b) a reference in those provisions to the responsible Minister of a department were a reference to the Speaker of the Legislative Assembly; and
(c) a reference in those provisions to the responsible Chief Executive of a department included a reference to the Clerk of the Legislative Assembly.