Abstract: Many diversity indexes have been developed to describe the biodiversity and integrity of biological communities, and each index tells us something unique about that community. However, some studies have found that these metrics alone were inadequate for describing differences in quality among biological communities. The Floristic Quality Assessment Index (FQA) differs from most other indexes because it incorporates plant community composition along with species richness to describe an area’s biodiversity and ecological integrity. This report presents the history and background of the FQA and its various applications in the areas of natural resource management and research. Additionally, the report discusses the strengths and weaknesses of the FQA and presents examples of how to apply the FQA in the project planning processes. The FQA is a simple and effective means of distinguishing among sites with different ecological integrity and of monitoring restoration progress. It can be used in project planning to prioritize work areas, set project goals, and assess progress toward these goals. Incorporating the FQA into project planning embeds ecological integrity and biodiversity into project objectives, ensuring that restoration projects contribute to the long-term health and sustainability of natural areas.