How is a new area added to the National Park System, National Wild and Scenic Rivers System, National Trails System, or National Heritage Area Program?
When the US Congress is interested in exploring these new designations, it passes legislation that directs the Secretary of the Interior to undertake a study that provides expert analysis about an area’s resources and their potential for National Park Service designation. These studies provide Congress with critical information used in the legislative process of designating a new unit or addition to an existing unit or related area. The National Park Service (NPS) typically conducts these studies for the Department of the Interior.
Active and Completed Study Documents
Use the table or search bar to find project pages and documents for active and completed studies of potential new NPS designations. The links provided bring you to the homepage for each project on NPS Planning, Environment, and Public Comment (PEPC).
| Project | State(s) |
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National Park Service System Plan
The National Park Service System Plan released in 2017 shares a vision for the National Park System, describes gaps in the System related to natural and cultural themes, and provides recommendations for evaluating and studying new park units. It has served as a recent guide for shaping the System while leaving room for flexibility.Additional Resources
Types of Studies
Before there is a new National Park Service designation, Congress can authorize a study to assess the site and associated resources.
Establishing New Units
A Congressional Research Service report provides an overview of how park units are added to the National Park System.
Reporting to Congress
Find summaries of recent studies that met all required criteria and have not yet been designated.
Current Status Updates
Get status updates on ongoing studies of potential new National Park System designations.
Last updated: November 21, 2024