This report presents the results ofextensive work of the smart green infrastructure task forcecommissioned by the World Bank under the Global TigerInitiative (GTI). The report benefited from advice, ideas,and information about tigers and tiger-friendlyinfrastructure development from staff at the World Bank, andfrom several institutions that promote tiger andbiodiversity conservation throughout the world. This studyaddresses infrastructure's impacts on tigers atinternational, national, sectoral and project levels incombination with the mitigation hierarchy which is based onavoidance, mitigation, minimization and compensation ofimpacts. It examines infrastructure policy challenges andopportunities, using lessons learned from case studies,along with regional and in-country analyses. While there areopportunities for improvement in all countries, Russia,India, Bhutan, and Nepal has, in particular, developed goodfoundations for tiger-related conservation, planning, andpolicy efforts. Best practices, drawn from case studies innon-tiger range countries, provide additional insights intoinfrastructure practices that could benefit tigerpopulations. Avoiding Tiger Conservation Landscapes (TCLs)is the best and cheapest option available to all parties forsaving wild tigers.