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An appeals court on Wednesday blocked a California law that would have generally required federal officers to display their names or badge numbers in public while working in the state — a response to people impersonating immigration officials under the Trump administration.
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The panel of three judges from the 9th U.S. Circuit Court of Appeals said the measure could not go into effect because it “explicitly overrides the federal government’s power to determine whether, how and when to publicly identify its officers, and therefore regulates the manner and conditions under which federal agents can enforce federal law.” The U.S. Constitution generally gives federal law supremacy over conflicting state rules.
Officers that didn’t follow the measure, Senate Bill 805, could have faced a misdemeanor.
U.S. Associate Attorney General Stanley Woodward Jr., in a post on X, called the ruling “a huge win for protecting the safety of our nation’s law enforcement officers” and ensuring President Donald Trump’s promise “to enforce our nation’s immigration laws.”
The law is one in a series of efforts by California legislators to test the bounds of their authority over federal government actions and officers in response to escalated enforcement tactics by the Trump administration. It passed last year along with another measure that would have generally made it a misdemeanor for federal officers to wear a face covering while working. That bill was also blocked, but its author passed another measure this year to try and make it enforceable.
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State Sen. Sasha Renée Pérez, D-Alhambra, who authored SB 805, said in a statement she was “deeply disappointed” by the ruling.
“As the Trump administration, again, ramps up immigration enforcement in California, this is an especially dangerous time to have unidentifiable people who are purportedly federal agents with limited training violently swarming our communities with concealed identities.”
The California Attorney General’s Office, in a statement, said it was disappointed by the decision and reviewing the opinion from the judges.
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This story was originally published October 15, 2026 at 11:00 AM.