To identify specific legal and policy gaps in the CLMTV countries (Cambodia, Lao PDR, Myanmar, Thailand, and Vietnam), the legal and policy frameworks mandating ESG standards for infrastructure were mapped and benchmarked against international best practices for environmental and social (E&S) safeguard policies and standards. To achieve these objectives, an international safeguards framework was developed, based on amalgamated E&S safeguards from the Asian Development Bank, International Finance Corporation, World Bank, and the Equator Principles. The framework was used to compare and map the level of conformance of the national ESG laws and policies in the CLMTV countries. The results were used to write the gap analysis report and identify opportunities to strengthen ESG policies and requirements.