PolicyBrief
S. 5347
119th CongressAug 6th 2026
Circuit Court of Appeals Reorganization Act of 2026
IN COMMITTEE

The Circuit Court of Appeals Reorganization Act of 2026 modernizes the federal judiciary by redrawing the boundaries and compositions of the Eighth, Ninth, and Tenth Judicial Circuits.

Mike Lee
R

Mike Lee

Senator

UT

LEGISLATION

Federal Court Map Redrawn: Ninth Circuit Split and New Boundaries Set for 2026

The Circuit Court of Appeals Reorganization Act of 2026 is a major legislative push to break up the massive Ninth Circuit Court—which currently covers a staggering 40% of the U.S. landmass—and redistribute states into a new judicial map. By redrawing the Eighth, Ninth, and Tenth Circuits, the bill aims to balance the workload and ensure that federal appellate courts better reflect the population growth seen in the West since the last major update. This isn't just a map change; it’s a shift in how federal laws are interpreted for millions of people across states like Arizona, Nevada, and Montana.

The New Judicial Neighborhoods

Under the bill, the map gets a significant makeover. The Ninth Circuit will shrink to include only California, Oregon, Washington, Hawaii, and Pacific territories. Alaska, Idaho, and Montana will move into a expanded Eighth Circuit alongside states like Missouri and Arkansas. Meanwhile, Arizona and Nevada will jump over to the Tenth Circuit, joining Colorado and Utah. If you’re a business owner in Phoenix or a worker in Boise, your federal appeals will soon be heard by different groups of judges in different cities, potentially changing the legal environment you operate in.

The Precedent Pivot

This is where the fine print matters for anyone currently in a legal battle or planning one. Section 3 of the bill explicitly states that once this kicks in, former Ninth Circuit precedents will no longer be binding in states like Arizona, Idaho, and Montana. Instead, these states will adopt the legal rules of their new circuits. Imagine you’re a contractor in Nevada who has been following a specific federal labor rule established by the Ninth Circuit; once this bill passes, you might find that the Tenth Circuit has a completely different take on that same law. It creates a "clean slate" that could lead to a wave of new litigation as people test how the new courts will rule on old issues.

Courthouse Logistics and the Transition

The bill doesn’t just move lines on a map; it moves people and paperwork. Judges will be reassigned based on where they are currently stationed, keeping their seniority but changing their circuit affiliation. For active cases, the bill sets a clear cutoff: if a case hasn't been "submitted for decision" yet, it gets packed up and mailed to the new circuit court. There’s also a specific focus on South Dakota, where the bill requires a plan for a new courthouse in the Rapid City area within a year. While the bill authorizes "whatever funds are necessary" to build these facilities and manage the move, that open-ended price tag is something to watch, as government construction projects aren't exactly known for coming in under budget.