The study aimed to identify the availability of the ingredients for the application of environmental cost accounting in the economic blocs of the Common Market for Eastern and Southern Africa "COMESA", and to clarify the importance of having an environmental accounting system that enables the measurement of environmental costs, and whether the COMESA grouping countries apply the system of environmental accounting or not. This study relied on the use of the quantitative and descriptive analytical method in describing the study variables, and the field method was used for data collection, analysis and hypothesis testing. To achieve this goal, (120) questionnaires were distributed including a scale based on the members of the study sample and was analyzed, including (120) questionnaires. The results of the statistical analysis showed that there is no statistically significant relationship between the economic blocs of the Common Market for Eastern and Southern Africa (COMESA) and between the measurement and accounting disclosure of environmental costs, and there is no statistically significant relationship between the economic blocs of the Common Market for Eastern and Southern Africa (COMESA) and between the economic blocs In the European Union, there is a statistically significant relationship between obstacles, measurement and disclosure of environmental costs in the economic blocs of the Common Market for Eastern and Southern Africa (COMESA). In separate items within the financial statements, it helps in evaluating environmental performance. The study also found indicators of the economic performance of the COMESA grouping during the period (2015-2020), and the researcher recommended the need to develop an environmental accounting system to enable accurate measurement of environmental costs, and the need to issue legislation obligating the countries of the COMESA grouping to disclose environmental costs, applying international and European accounting and environmental standards that Check accounting disclosure for environmental costs.
Keywords: environmental costs, economic blocs, the Common Market for Eastern and Southern Africa "COMESA"