In module 9, the focus is on the process by which sustainable materials are chosen to include in a set of MasterFormat© specifications. Several sources are examined for their criteria and are compared to arrive at a generic criteria. Carbon footprint and the implications of material use in carbon economics schemes are investigated using Canadian standards designed for net-zero-carbon goals for buildings. (Module 9a – Slides 7-17. Module 9b – Slides 14-22)