FOR IMMEDIATE RELEASE

Agency Tribal Nations Issues PN-510: Case Law Division & Diversion to Tribal Court Initiative
Largest Tribal Case-Law Database of Its Kind, Paired with a Sovereign Diversion Program for Tribal Members Improperly Pulled into California State Courts

April 7, 2026

Mendocino Indian Reservation • Sovereign Tribal Territory

Public Notice #: PN-510

Hub: pl280.html

Initiative: Case Law Division & Diversion to Tribal Court

AGENCY TRIBAL NATIONS today issued Public Notice PN-510, formally launching the Case Law Division of Agency Tribal Nations and announcing the Diversion to Tribal Court program for tribal members. The Case Law Division operates the largest tribal case-law database of its kind — a deep, structured archive of the foundational, limiting, and tribal-court-authority decisions that define Indian Country jurisdiction. The Diversion to Tribal Court program gives tribal members a sovereign legal pathway out of California state courts that, under settled federal case law, should never have asserted jurisdiction over them on tribal land in the first place.

The Case Law Division — A Sovereign Legal Research Engine

The Case Law Division of Agency Tribal Nations consolidates the controlling federal precedent on tribal sovereignty, Public Law 280, tribal court authority, and the limits of state and county jurisdiction in Indian Country into a single, structured, publicly accessible database. Built around the PL 280 Resource Hub, the database is organized into the categories that practitioners, tribal courts, and tribal members actually need to use when challenging unlawful state-court reach.

Foundational Sovereignty Cases — Worcester v. Georgia, Williams v. Lee, McGirt v. Oklahoma, and the bedrock authorities that establish tribal sovereignty as a constitutional matter.
Cases That Directly Limit PL 280 — Bryan v. Itasca County, California v. Cabazon Band, McClanahan, and White Mountain Apache v. Bracker — the decisions that draw the hard line between state criminal authority and the impermissible reach of state civil/regulatory power into Indian Country.
Tribal Court Authority Cases — Walker v. Rushing, United States v. Lara, Lexington Insurance v. Smith, Haaland v. Brackeen, and the line of authority confirming inherent tribal court jurisdiction.
Constitutional Challenge Authority — Menominee Tribe v. United States, Los Coyotes Band v. Jewell, and related decisions for confronting structural overreach.
California-Specific Authority — Hoopa Valley TLOA § 1162(d), Hopland Band v. California, and the Northern California Intertribal Court System framework.
DOJ Office of Tribal Justice — Concurrent Tribal Authority Memo (2000/2023) — federal acknowledgement of tribal jurisdiction concurrent with state authority under PL 280.

The Jurisdictional Problem

California operates state courts that physically sit on or directly adjacent to tribal lands within Mendocino County, and those courts routinely process matters involving tribal members from the Mendocino Indian Reservation. Under Bryan v. Itasca County, California v. Cabazon Band, and the entire body of post-1976 PL 280 jurisprudence, the civil/regulatory authority California has assumed is sharply limited — and in many of the matters tribal members are pulled into, the state court has no lawful jurisdiction at all. The result is a steady, decades-long pattern of tribal members being adjudicated in forums that controlling federal case law says are the wrong forums.

Diversion to Tribal Court — The Sovereign Off-Ramp

The Diversion to Tribal Court program is the practical remedy. Where a tribal member is pulled into a California state court on a matter that — under PL 280 case law — properly belongs in a tribal forum, the Case Law Division will work with the member to formally divert the matter to tribal court jurisdiction, supported by the controlling case-law record from the Case Law Division database.

Eligibility Review — Case Law Division attorneys and advocates assess whether the matter falls outside lawful state-court jurisdiction under PL 280, Bryan v. Itasca County, Cabazon, McClanahan, and the limiting line of cases.
Case-Law Packet — the member receives a tailored case-law packet drawn directly from the Case Law Division database, citing the controlling federal authorities for the specific type of matter.
Tribal Court Forum — qualifying matters are diverted into a tribal court forum operating under inherent tribal authority and recognized federal precedent.
Coordination with Tribal Court Systems — the program coordinates with tribal court resources including the Northern California Intertribal Court System (NCICS) framework where appropriate.
Sovereignty Defense Record — every diversion strengthens the documentary record of tribal jurisdictional reassertion under federal law.

What Public Notice PN-510 Does

PN-510 publishes and gives public legal effect to two integrated actions of Agency Tribal Nations: (1) the establishment of the Case Law Division as the official legal research arm of Agency Tribal Nations, anchored on the PL 280 Resource Hub; and (2) the launch of the Diversion to Tribal Court program as the operational remedy for tribal members improperly subjected to California state-court jurisdiction on tribal land. Together they convert the case-law record into a working sovereignty defense for individual tribal members, not just an academic archive.

Why Now

For decades, the gap between what federal case law actually says about PL 280 and what California state courts actually do on tribal land has been borne by individual tribal members — one case, one fine, one foreclosure, one custody fight at a time. The Case Law Division closes that gap with research; the Diversion to Tribal Court program closes it with action. PN-510 puts state and county actors, the bar, and the public on notice that Agency Tribal Nations is no longer treating jurisdictional overreach as a theoretical problem. Going forward, the case-law record and the diversion pathway are both on the table for every tribal member.

Effective Date and Status

Public Notice PN-510 is effective April 7, 2026. The Case Law Division is operational and the Diversion to Tribal Court program is open to tribal members of the Mendocino Indian Reservation effective immediately. The Office of the Head Chief and the Board of Governance are authorized to advance staffing, intake, and intergovernmental coordination consistent with this notice.

Submit a Public Comment on PN-510

This Public Notice is open for public comment for thirty (30) days from the date of publication. The Tribal membership, the public, federal, state, county, and municipal actors, and any other interested party may submit a comment, objection, or response on this project, law, or initiative during the disclosure period.

Comment Period: April 7, 2026 — May 7, 2026

Comment via Email

Comments are sent to chief@altearth.org — Office of the Head Chief, Agency Tribal Nations

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