Barriers and Gateways to Green Infrastructure identifies and explores the major barriers to implementation of green infrastructure for stormwater management. The barriers were identified through a survey of various stakeholder groups from across the United States, and included the following themes: technical and physical barriers, legal and regulatory barriers, financial barriers, and community and institutional barriers. The report also provides several recommendations to the U.S. EPA for overcoming these barriers, including creation of new stormwater regulations and permits, full accounting for economic and environmental benefits, embracing of new stormwater approaches, and increased federal funding for green infrastructure.