Sustainable resource management within urban gateway communities can be fraught with conflict between local and national governance structures, site managers and users, in particular when funding and human capital are insufficient to address the complex needs of protected areas (PAs). The purpose of this chapter is to thematically review sustainability and PA management plans and practices within the National Mall and Memorial Parks in light of the surrounding gateway community of Washington, District of Columbia (DC). Ten Green Parks Plan goals, developed by the National Park Service (NPS), provide a basis of examination, with grounded theory and qualitative document analysis used to deduce specific challenges and notable enhancements. Data sources include printed information, consultancy, formal interviews, informal conversations and/or presentations by key stakeholders. Since the needs of residents and tourists are inevitably linked, this analysis serves as a model for contextualizing national sustainability guidelines on a local level for urban gateway destinations.