This document discusses domestic barriers to regional trade and investment in sustainable materials management solutions. It outlines a circular approach to SMM that focuses on resource minimization through strategies like reuse, repair, recycling, and composting. The document defines key terms like mixed waste materials and explores opportunities in the recycling value chain to improve infrastructure, develop end markets, and standardize methods. Overall it argues for a circular economy approach to focus existing waste policy on valuing materials and connecting education to infrastructure development.