S. 1377Passed one chamberEnvironment & energy
Bill requires park service to maintain 150 wild horses in North Dakota
Data as of July 16, 2026
The bill legally requires the National Park Service to keep at least 150 wild horses in Theodore Roosevelt National Park.45-second read · 4 questions answered below
Decoded
What does this do?
This bill requires the National Park Service to maintain a herd of at least 150 wild horses in the South Unit of Theodore Roosevelt National Park. It requires a management plan within 120 days and yearly public reports on the herd's population, health, and makeup. Horses could only be removed as part of an approved genetic diversity plan or during emergencies or public health situations.
Who does it affect?
This mainly affects the National Park Service, which must maintain rather than reduce the herd. It also affects park visitors, wildlife and conservation groups, nearby tourism-dependent communities, and Native American tribes and historians who view the horses as culturally significant.
Why does it matter?
The change reverses a prior proposal by park managers to potentially remove the herd over environmental impact and non-native species concerns, replacing that discretion with a legal mandate.
Where does it stand?
- Introduced
- Senate committee
- Senate vote
- House — You are here
- President's desk
Right now: it passed the Senate and now goes to the House. If the House changes it, it goes back to the Senate before reaching the President.
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Official title
Theodore Roosevelt National Park Wild Horses Protection Act
- Introduced:
- April 9, 2025
- Latest action:
- June 15, 2026
Held at the desk.
Read the official bill on Congress.govMake the call
Three steps: where you stand, your script, the call.