This document summarizes an interagency pilot project that integrated climate change, transportation, and land use planning on Cape Cod. The project developed scenarios to reduce greenhouse gas emissions and adapt to sea level rise impacts. Locally, the Cape Cod Commission and National Park Service are using the project's tools and preferred scenario to guide regional planning efforts including wastewater management, hazard mitigation, and economic development. The project demonstrates how partnerships across agencies can advance integrated planning and benefits other communities interested in similar initiatives.