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No. 21-1484October Term 2022Decided Jun 22, 2023

Docket 21-1484October Term 2022 (2022–2023)

Arizona v. Navajo Nation

The case asked whether the 1868 treaty and related federal law imposed an affirmative federal duty to secure water for the Navajo Nation.

Case status

Current stage
Decided
Latest event
Decision released Jun 22, 2023
Case AcceptedNov 4, 2022
Arguments HeardMar 20, 2023
Decision ReleasedJun 22, 2023
What it's about

The case asked whether the 1868 treaty and related federal law imposed an affirmative federal duty to secure water for the Navajo Nation. The Court held they did not impose that affirmative duty and reversed the Ninth Circuit.

Question presented

Does the 1868 Treaty between the Navajo Nation and the United States impose an affirmative duty on the United States to secure water for the tribe?

Case path

United States Court of Appeals for the Ninth Circuit / Decision released Jun 22, 2023

Area

Equal Protection

Grounding

Grounding
Primary-source trail available.
Note
Plain-English explainer. Official filings and opinions remain authoritative.
Checked
Apr 30, 2026
Primary materials5