The document summarizes the upcoming Environmental Performance Review of Lithuania by the OECD in 2021. The review will: 1) Provide an independent assessment of Lithuania's progress on environmental commitments and compare it to other OECD countries. 2) Identify successes, best practices, and challenges in Lithuania's environmental policy. 3) Formulate policy recommendations to help Lithuania advance its environmental agenda. The review will examine Lithuania's environmental objectives, plans, results, and actions across key areas like governance, green growth, and sustainable mobility. It will involve information collection, a virtual review mission with Lithuanian stakeholders, and a policy mission to discuss findings and recommendations.