The Hawaii Environmental Assessment, Threatened or Endangered Species, and Wetlands Addendum is a comprehensive document that evaluates the potential ecological impact of a development or construction project in the state of Hawaii. It consists of various components that assess the environmental aspects of the proposed project, with a particular focus on threatened or endangered species and wetlands. The purpose of the Environmental Assessment (EA) is to identify and predict the potential environmental impacts of the project, recommend measures to mitigate those impacts, and gather public input. The EA is a crucial step in the project planning process as it ensures compliance with state and federal environmental laws and regulations, such as the National Environmental Policy Act (NEPAL) and the Endangered Species Act (ESA). Threatened or Endangered Species refers to the classification of plant or animal species that are at risk of extinction within the near future. Hawaii is home to a rich diversity of unique and endemic species, many of which are endangered or threatened due to habitat loss, invasive species, or other anthropogenic factors. The Addendum includes an assessment of these species and their habitats, considering the potential impacts of the proposed project on their survival and recovery. Wetlands are another critical component assessed in the Addendum. Wetlands are areas where water covers the soil or is present either at or near the surface of the soil all year or for varying periods during the year. Wetlands provide important ecosystem services such as water filtration, flood control, and habitat for numerous species. Thus, their preservation and protection are vital. The Addendum evaluates whether the proposed project affects any wetland areas and proposes mitigation measures if required. In addition, there can be different types of Hawaii Environmental Assessment, Threatened or Endangered Species, and Wetlands Addendum based on the nature and scale of the project. For instance, there may be Addendums specific to construction projects, land development, infrastructure development, or industrial activities. Each type of Addendum will have unique considerations and methodologies to assess and mitigate potential impacts on the environment. Overall, the Hawaii Environmental Assessment, Threatened or Endangered Species, and Wetlands Addendum aims to ensure sustainable development while safeguarding the unique biodiversity of the Hawaiian Islands and protecting vital wetland ecosystems. The document plays a crucial role in environmental decision-making processes and helps in striking a balance between development and conservation.