Programmatic Agreement Among the United States General Services Administration, the District of Columbia Historic Preservation Office, the United States Federal Highway Administration, the National Capital Planning Commission, and the United States Department of Homeland Security Regarding the Redevelopment of St Elizabeths National Historic Landmark, Washington, D.C. 

• Amendment #1 (2018)
• Amendment #2 (2021)
• Amendment #3 (2022)