Supreme Court Ends Chevron Deference in Loper-Bright, Shaking Tribal Law

3 min readSources: SCOTUSblog

The Supreme Court's 2024 Loper-Bright ruling ends Chevron deference for federal Indian affairs.

Why it matters: This ruling shifts longstanding legal frameworks governing tribal sovereignty and federal agency authority, requiring lawyers to rethink how they advise clients on jurisdictional and regulatory issues involving tribes.

  • The 2024 Supreme Court decision in Loper-Bright v. Raimondo eliminates Chevron deference for federal Indian affairs, increasing unpredictability in agency interpretations.
  • By 2025, the Bureau of Indian Affairs' Missing and Murdered Unit was nearly 50% understaffed, hampering investigations despite increased funding.
  • Between 2021 and 2024, 39% of this unit’s budget was redirected to other law enforcement purposes, weakening direct support for tribal victims.
  • Past Supreme Court rulings like California v. Cabazon Band (1987) remain foundational in defining tribal regulatory authority, highlighting complex jurisdictional dynamics.

The 2024 Supreme Court ruling in Loper-Bright Enterprises v. Raimondo marks a significant shift in federal Indian law by ending Chevron deference for the Bureau of Indian Affairs and other agencies overseeing tribal matters. Chevron deference previously required courts to defer to reasonable agency interpretations of ambiguous statutes, providing some predictability for tribal sovereignty and federal regulation. Without it, federal agency actions face closer judicial scrutiny, increasing legal uncertainty for lawyers advising on tribal jurisdiction.

The impact on federal agencies is already visible. The Bureau of Indian Affairs' Missing and Murdered Unit, tasked in 2021 with addressing violence against Native American communities, struggled with staffing and funding issues through 2025. Nearly half its positions remained vacant, limiting its operational capacity. Despite budget increases from $12 million to $17 million over 2021-2024, 39% of the budget was diverted to broader law enforcement initiatives, weakening targeted investigation efforts critical to tribal families.

Understanding tribal sovereignty requires context from prior rulings. The 1987 California v. Cabazon Band of Mission Indians decision established that states cannot regulate gaming on reservations, strengthening tribal self-governance. Conversely, the Patchak ruling allowed non-Indians to sue over tribal lands in trust, illustrating ongoing vulnerabilities in tribal protections.

Legal scholar Sarah Deer, a prominent expert on tribal law and violence against Native communities, highlights the human cost: "A system designed as a response to that history cannot ask families to keep waiting." Her expertise underscores the urgency for legal professionals to adapt to shifting doctrines impacting tribal justice and sovereignty.

For lawyers, this evolving landscape means reassessing the reliability of federal regulations and agency interpretations in tribal affairs. The end of Chevron deference and persistent funding challenges complicate legal strategy, requiring heightened diligence in analyzing jurisdictional claims and advocating for tribal interests.

By the numbers:

  • 50% — BIA Missing and Murdered Unit positions unfilled by 2025, limiting effectiveness
  • 39% — Portion of the Missing and Murdered Unit’s budget redirected to other law enforcement uses from 2021 to 2024
  • $17M — BIA Missing and Murdered Unit’s allocated budget in 2024, up from $12M in 2021

Yes, but: While the Loper-Bright ruling removes Chevron deference, courts may develop new standards for reviewing agency actions, which could restore some consistency over time. Additionally, federal funding and policy decisions still heavily influence tribal law enforcement effectiveness independent of judicial doctrines.

What's next: Legal professionals should monitor further Supreme Court decisions interpreting the post-Chevron landscape in Indian law, alongside federal budget appropriations that affect tribal agencies like the BIA Missing and Murdered Unit. Ongoing federal-tribal negotiations and legislation may also reshape jurisdictional authority.