UL 3600 helps address an urgent need for methods to measure circularity progress in light of global megatrends – including climate change, resource constraints, and bioaccumulation of toxic chemicals – that are already having significant impacts on human and ecosystem health. The certification document provides the foundation of UL’s Circularity Facts ™ Program, through which UL evaluates a company’s efforts to move from a linear economy mindset to a more sustainable, circular approach that eliminates waste and keeps materials in productive use longer. Through the program, UL is able to report on several aspects of sustainability, including the use of recycled content (such as closed-loop recycled content), bio-based content, recyclability, waste minimization and zero waste to landfill.