In the event of re development and / or refurbishments:
4.2.1 The State Departments and Supported Bodies shall do as much as necessary to care for heritage resources under their control and in order to make them useable, but otherwise change them as little as possible so that their cultural significance is retained.
4.2.2 Any action taken shall be under the direction, permission, supervision and implementation of a Competent Authority. Supervision should be maintained at all stages, and any changes should be implemented by people with appropriate knowledge and skills.
4.2.3 The notification required in section 9 of the Act before any development shall be preceded with informal consultation between the respective State Departments and Supported Bodies.