E204-2017 Sustainable Projects Exhibit , has been developed for use on a wide variety of sustainable projects, including those in which the Sustainable Objective includes obtaining a Sustainability Certification, such as LEED® (Leadership in Energy and Environmental Design), or those in which the Sustainable Objective is based on incorporation of performance-based sustainable design or construction elements. E204–2017 addresses the risks, responsibilities and opportunities unique to projects involving substantial elements of sustainable design and construction (sustainable projects). E204–2017 is not a stand-alone document, but is intended to be attached as an exhibit to an existing agreement on a project that includes a Sustainable Objective. E204–2017 is intended to replace the Sustainable Projects documents included in the Conventional (A201) family of AIA Contract Documents.