Although LEED v4 passed with an overwhelming vote of approval, many members still expressed some concerns with this new version. I was one of those who voted yes, but I know of others who voted no. Because I am working on two projects that are part of the LEED v4 Beta Program, I see what will be required and how different this version will be from the current v2009 program. Also, one of the projects uses LEED NC while the other follows LEED CI, which gives me a chance to compare different rating systems within v4. Both projects are still under construction so I haven’t had a chance to submit for review and see how my documentation will work with the new requirements. Here’s a snapshot of what I, as a LEED consultant, see as the changes to the Materials and Resources category.