Subsection (1) permits the Department to dissolve or alter a reservoir panel and subsection (2) specifies that the Department must give reasonable notice to members of the panel before doing so. The Department may permit a civil engineer commissioned from the panel in relation to a controlled reservoir to continue in his role for a period of up to 4 years, but may; by notice direct that an engineer is no longer entitled to do so during the 4 year period due to unsuitability. Subsection (6) provides the Department with the power by order to amend the time period (4 years) specified in subsection (3) for an engineer commissioned to be permitted by the Department to continue in the role.