Appeals Court Blocks California Law Requiring ICE Agents to Show ID

Picture an unmarked SUV pulling up outside a workplace in Los Angeles. Men in tactical vests step out, faces covered, no names on their chests. Are they federal immigration officers, or criminals pretending to be? California lawmakers said residents deserved a way to tell the difference. On Wednesday, a federal appeals court said the state has no power to make that call for Washington.

The California ICE ID law, a provision of the 2025 No Vigilantes Act, required plainclothes officers working in the state, including federal agents, to visibly show their agency and a name or badge number during enforcement work. A three-judge panel of the U.S. Court of Appeals for the Ninth Circuit ruled on Oct. 14, 2026, that the provision cannot be enforced against the United States, its agencies or its officers.

The vote was 3-0. Judge Mark J. Bennett wrote the opinion, joined by Judges Daniel P. Collins and Jacqueline H. Nguyen. Bennett and Collins were appointed by President Trump. Nguyen was appointed by President Obama, which makes the result harder to dismiss as a partisan split.

What the California ICE ID Law Required

Gov. Gavin Newsom signed two related bills in September 2025, after the federal immigration crackdown in Southern California that June. One, S.B. 627, known as the No Secret Police Act, barred officers from wearing face masks during enforcement. The other, S.B. 805, the No Vigilantes Act, carried the identification rule now at the center of the case.

Section 10 of S.B. 805, written into California Penal Code section 13654, applied to nonuniformed law enforcement officers operating in the state. It expressly covered federal officers. They had to visibly display identification showing their agency and either a name or a badge number while performing enforcement duties. Willful and knowing violations were misdemeanors.

The law had several exceptions, according to the Ninth Circuit’s published opinion:

• Active undercover or investigative operations
• Plainclothes work by certain state agencies or their federal equivalents
• Officers wearing protective gear that prevents display
• Exigent circumstances, including off-duty response
• SWAT and tactical team members on duty
• Protective details for dignitaries

A companion section of state law required agencies to adopt and post a written identification policy. Agencies that did so were shielded from the criminal penalties. That safe harbor did not save the statute in court.

How the Case Reached the Ninth Circuit

The Justice Department sued California in late 2025. In February 2026, Senior U.S. District Judge Christina A. Snyder in Los Angeles blocked the mask ban as applied to federal officers. She found it discriminated against the federal government because it exempted some state officers. That part of her ruling was not appealed.

Snyder did not block the identification requirement. She found the federal government had not shown its current identification practices were essential to its work, and she rejected the argument that agents needed anonymity for safety. In her view, masked and unidentifiable officers were more likely to raise public fear than lower it.

The Justice Department appealed. In April, the Ninth Circuit froze the identification rule while the appeal moved forward. The panel heard arguments on Aug. 25, 2026, in Pasadena, and issued its published opinion on Oct. 14.

Why the Court Blocked the California ICE ID Law

The case turned on a doctrine called intergovernmental immunity, which grows out of the Constitution’s Supremacy Clause. Under it, a state law can fail in two ways. It can discriminate against the federal government, or it can directly regulate the federal government.

California built its defense around the first test. The identification rule applied to state and local plainclothes officers as well as federal ones, the state argued, so it treated everyone the same. California also pointed to an FBI warning about criminals impersonating immigration agents as proof the rule served public safety.

The panel decided the case on the second test instead. Bennett wrote that states may not directly regulate federal operations, even if they regulate their own operations the same way. The law, he wrote, “exclusively regulates quintessentially government conduct: law enforcement.” Because it applied only to officers doing enforcement work, it controlled how the federal government performs a core sovereign function.

The court also rejected several of California’s fallback arguments:

• The burden argument. California said the rule imposed only a small burden. The panel said the size of the burden does not matter when a state directly regulates the federal government.
• The essential-functions argument. Snyder had faulted the government for not proving its practices were essential. The panel said that question was irrelevant.
• The case-by-case argument. California suggested individual officers could raise their own defenses if prosecuted. The panel said the immunity belongs to the United States itself.

Because the panel found the provision invalid in every application, the facial challenge succeeded. It ordered Snyder to enter a preliminary injunction barring California, Newsom and Attorney General Rob Bonta from enforcing the identification rule against federal officers and agencies.

What Federal Rules Already Require

The ruling does not mean immigration officers can refuse to say who they are. Federal regulations, cited in coverage by Immigration Analytics, require immigration officers making an arrest to identify themselves orally as immigration officers, as soon as it is practical and safe to do so.

That is a spoken requirement, not a visible name tag or badge number. The difference matters to both sides. Supporters of the state law say a verbal statement is easy to fake and hard to verify during a tense encounter. Federal officials say a name on a vest can be photographed, posted online and used to find an officer’s family.

The Case for the California Law

California’s strongest argument rests on public trust and impersonation. In October 2025, the FBI’s New York field office sent a three-page memo to police agencies nationwide about criminals posing as immigration agents, according to Police1, which reviewed the memo after it was obtained through a records request.

The memo described a man in Florida who posed as an ICE agent and drove a woman in the citizenship process to an apartment complex before she escaped. It also described an August robbery in New York in which three men in black vests identified themselves as immigration agents, beat and tied up restaurant workers and robbed an ATM. The memo urged agents to show identification when asked in the field.

California’s attorney general’s office said after the ruling that transparency and accountability are foundations of good policing. “We’re disappointed in today’s decision and reviewing the court’s opinion,” the office told Courthouse News.

The Case for the Federal Government

The federal government’s position rests on officer safety and the structure of the Constitution. The Justice Department argued that California’s law endangers officers and that no state may set rules for how federal agents do their jobs.

The Department of Homeland Security has said its officers face a sharp rise in threats. In 2025, DHS reported an 830 percent increase in reported assaults on ICE personnel from Jan. 21 to July 14, compared with the same period a year earlier. It also cited doxing, the online posting of officers’ identities and personal details. DHS released the percentage without the underlying counts, so the size of the increase in raw numbers is not public.

The constitutional argument does not depend on those numbers. The panel said it made no difference how heavy the burden was. If states could require federal agents to wear name tags, the logic goes, they could also dictate uniforms, vehicle markings or tactics. The Supremacy Clause leaves those decisions to Congress and federal agencies.

California Is Not Alone

California was first, but it is no longer the only government trying to unmask federal agents. According to a tally by the American Immigration Council, Washington, Oregon, Maryland, New Jersey, Connecticut, Virginia and New York all passed mask or identification measures in 2026. The Justice Department has sued New Jersey, Connecticut, Virginia and New York.

On Oct. 8, the department also sued Denver over a city ordinance approved in March. It bars officers, including federal immigration agents, from wearing masks while interrogating, detaining or arresting people in the city. Violations can bring up to 300 days in jail and a $999 fine, Colorado Politics reported. Mayor Michael Johnston has said the city will fight the suit to the end.

The Ninth Circuit’s opinion is binding on federal courts in Washington and Oregon, which sit in the same circuit. Denver is in the Tenth Circuit, and the East Coast states are in the Second, Third and Fourth. Those courts are not bound by the California ruling, but they are likely to weigh it.

Why It Matters

This case is bigger than name tags. It is about who gets to write the rules when federal and state governments disagree, and the answer the court gave was clear: on federal law enforcement, Washington writes them unless Congress says otherwise.

For federal officers and their families, including the veterans who carry their service into federal law enforcement careers, the ruling keeps names off vests in California, at least for now. Those families have a stake in how much personal information is exposed during enforcement work, especially as doxing has become a common tactic online.

For ordinary residents, including legal immigrants and the citizens who live and work alongside them, the ruling leaves a real gap. The FBI’s own memo shows that criminals have used the ICE label to rob and intimidate people. If states cannot require visible identification, pressure shifts to Congress and federal agencies to set a standard of their own.

That is where the debate is likely to land. A federal rule on identification, set by Congress or by DHS policy, would avoid the constitutional problem entirely. Until that happens, the patchwork of state and city laws will keep producing lawsuits, and the courts will keep sorting them out one by one.

What Happens Next

California has three options. It can accept the ruling, ask the full Ninth Circuit to rehear the case en banc, or petition the U.S. Supreme Court. Immigration Analytics, which tracks these cases, described en banc review as an uphill request. The unanimous vote by judges appointed by presidents of both parties makes that path harder.

On remand, Snyder must enter the preliminary injunction. The Justice Department’s suits against Denver and the four Eastern states will continue in other circuits. If one of those courts reaches a different answer, the split could send the issue to a Supreme Court that is already facing a heavy slate of immigration disputes, as Stucci Media noted in its look at the cases to watch this term.

For more of our coverage of the courts and federal enforcement, see the Stucci Media immigration section, including our report on the Justice Department’s push to strip citizenship from 40 people.