The Public Gardens Sustainability Index represents a holistic approach to define principles and best practices for operational sustainability, sector-wide. The Index helps public garden professionals benchmark, develop, and adopt practices that span all sustainability components - integrating environmental, social and economic spheres. The Recycling Council of Ontario (RCO) has provided certification and profile surveys exteremely useful and relevant to the Materials Management Attribute. This is a great way for gardens to perform a self-audit of Materials Management and evaluate and understand the amount of waste generated, recycled, and disposed of that has implications to operational costs, and is a tangible indicator of stakeholder engagement. A successful waste diversion program includes participation from employees, occupants, shoppers, and/or visitors, depending on type of business.