Transportation planning and project development must reflect the desires of communities, and take into account the impacts on both the natural and human environments. Transportation projects are closely looked at to see how they might impact the community, the natural environment, and health and welfare. Before any project can move forward to construction, FHWA-TTP must address and comply with laws related to the environment. These laws cover social, economic, and environmental concerns ranging from community cohesion to threatened and endangered species. To navigate this detailed process, FHWA-TTP uses the National Environmental Policy Act (NEPA) process to evaluate impacts associated with each individual project.

The TTP Environmental Team seeks to help Tribes build stronger and happier communities by supporting Tribes to create, improve and maintain needed transportation facilities while considering impacts to the human, cultural and natural environment. As a federally-funded program, NEPA applies to Tribal Transportation Program projects, as codified by regulation in 25 CFR 170.450. There are many tools to help ensure your project complies with applicable environmental regulations. Below, you will find information to help you successfully navigate environmental compliance for TTP projects.

TTP Environment Sections

• FHWA TTP Environmental Checklist
• FHWA Program Delivery Guide Chapter VII: Preliminary Engineering NEPA and Other Environmental Requirements
• FHWA Environmental Review Toolkit
• FHWA Environment Topics and Resources