For the purposes of this Act, ecologically sustainable use of the Great Barrier Reef Region or its natural resources is use of the Region or resources:
(a) that is consistent with:
(i) protecting and conserving the environment, biodiversity and heritage values of the Great Barrier Reef Region; and
(ii) ecosystem - based management; and
(b) that is within the capacity of the Region and its natural resources to sustain natural processes while maintaining the life - support systems of nature and ensuring that the benefit of the use to the present generation does not diminish the potential to meet the needs and aspirations of future generations.