Purpose: This study explores the relationship between green transition areas that promote sustainability and the perceived level of corruption across 41 countries. Need for the study: Corruption undermines sustainability efforts and environmental governance, creating a need to understand its interaction with green transition indicators. Methodology: The study uses data from the Bertelsmann Stiftung (BS) Sustainable Governance Indicators (SGI) 2022 report and Transparency International's Corruption Perceptions Index (CPI), deploying statistical methods to examine how environmental policy and participation in international treaties affect corruption. Findings: State performance in environmental policy significantly influences corruption perception, with effects enhanced by international cooperation. Gross greenhouse gas emissions emerge as the most influential indicator, negatively affecting corruption perception by increasing its presence. Practical implications: These findings call for integrating anti-corruption measures into environmental policy frameworks, fostering international collaboration, and enhancing transparency to advance sustainable development and reduce corruption risks.