Triple Bottom Line (TBL) is defined and explained within the context of a broad philosophical approach to business and a more narrow perspective of reporting performance. The impact of the broader notion of sustainable development, with its macro- and microdimensions, on TBL, is also
discussed along with alternative ideological imperatives. The theoretical perspectives consider the effect of legitimacy and accountability theories on reporting and performance in the tourism sector. The operational level of TBL assumes the adoption of the responsible business philosophy of being accountable for the economic, environmental, and social outcomes of the organization and moves the discussion along to the reporting of relevant issues and the determinants of quality reporting. The
need for a reporting perspective is considered within the user, stakeholder, and societal assurance perspectives. An example of the infancy of the process is demonstrated through a discussion of performance reporting by Earth Sanctuaries Ltd., an Australian company. Earth Sanctuaries Ltd. is a unique case as it generates revenue from tourism activities in order to support its primary conservation
objective.