(1) Subject to subsection ( 2), the employing body for a principal executive office may, in writing, determine the terms and conditions (including remuneration and allowances) applying to the office.
(2) Except with the written consent of the Tribunal, an employing body must not determine terms and conditions in respect of a principal executive office that are inconsistent with terms and conditions determined by the Tribunal under subsection 7(3D) in respect of the classification to which the office is assigned.
(3) If a determination is in force under this section for a principal executive office, the determination overrides any provision of another Act that provides for the terms and conditions applying to the principal executive office, unless that other provision refers to, and is expressed to override, this section.