Construction material recycling has been an intrinsic part of green building since the concept was established 30 years ago. As a reflection of that, recycling credits have been a part of the U.S. Green Building Council’s Leadership in Energy and Environmental Design (LEED) program since its start. However, there has been controversy around the credits since almost the beginning. To support the USGBC in ensuring the credits are properly awarded, for the past 15 years, the CDRA has engaged the organization’s Materials & Resources Technical Assistance Group (M&R TAG) to provide insight into the realities of C&D recycling.