Section 17 of the Rottnest Island Authority Act 1987 requires the Rottnest Island Authority to control and manage Rottnest Island in accordance with a management plan.
Sections 18 and 19 of the Act provide for the management plan to be reviewed and approved by the Minister for Tourism every five years.
The Island’s unique heritage, landscapes and biodiversity are the very values that attract visitors to the Island. A 20-year vision document, the Rottnest Island Master Plan, has been developed in order to identify opportunities for the longer-term management of the Island consistent with these values.
Source: https://ria.wa.gov.au/about-us/about-rottnest-island-authority/Vision-for-Rottnest-Island