The document provides definitions for 170 icons in the Green Map System Icons Version 3. The icons are organized into 12 categories across 3 genres: Sustainable Living, Nature, and Culture & Society. The definitions describe what each icon represents, such as a farmers market, public transportation, green buildings, and more. Guidelines are provided for how mapmakers can utilize the icons on their Green Maps and related materials, with requirements to credit the Green Map System and include at least 50% of the global icons. Resources for the icons are available on the Green Map website.