Due to expanding requirements and diminishing resources, and lacking holistic/integrated design approaches, HQ ACC/A7PS has formulated a process for measuring sustainability at Air Combat Command (ACC) installations. This process will establish baseline metrics to identify actionable opportunities and investment strategies, and facilitate year-to-year comparisons. There are many individual efforts already in place at HQ ACC/A7PS and at the installation level. It is within this context that the ACC Installation Sustainability Assessment (ISA) process and report were developed. This report summarizes the current and recommended sustainability efforts at Ellsworth Air Force Base (AFB) and provide a basis for comparison and bench-marking.