California's Governor gets historic ICE "no mask" bill to sign into law.

California lawmakers have passed legislation intended to restore the state's ability to enforce its ban on extreme face-covering by federal immigration officers. The measure now goes to Gov. Gavin Newsom.

California lawmakers have sent *SB 1004" to Gov. Gavin Newsom, attempting to repair a legal problem that prevented the state from enforcing its law against masked federal officers.

The legislation matters for a basic reason: the public's ability to identify an officer can become part of the evidence when an arrest, use of force or other enforcement action is later questioned.

But the legislation is not yet law, and passage does not settle the larger constitutional dispute over how far a state may regulate federal officers.

What California lawmakers did

On August 28, 2026, the California Legislature announced passage of "" SB 1004**, authored by state $Sen. Scott Wiener."

According to Wiener's office, the Senate approved the measure 29–11 and the Assembly 41–18.

The bill now goes to Newsom, who has until September 30 to act on it.

SB 1004 modifies California's existing No Secret Police Act, enacted through SB 627 in 2025. That law generally prohibits covered law-enforcement officers from concealing their facial identities while performing their duties, subject to specified exceptions.

SB 1004 expands the definition of covered law-enforcement officers to include peace officers employed by California state agencies.

That change is important because of what happened in federal court earlier this year.

Why the first law ran into trouble

The **Trump administration"" challenged California's original law.

On February 9, 2026, U.S. District Judge Christina A. Snyder: issued a preliminary injunction preventing California from enforcing, SB 627's face-covering prohibition against federal law-enforcement officers.

The ruling contained an important distinction.

Snyder found that the federal government had not shown that the mask prohibition impermissibly directly regulated the federal government. The court said federal officers could perform their federal functions without wearing masks.

But the judge found a different constitutional problem: California's law did not apply equally to comparable law-enforcement officers throughout the state.

Because state officers had been left outside the prohibition while federal officers were covered, Snyder concluded at the preliminary-injunction stage that the law unlawfully discriminated against federal officers in violation of the Supremacy Clause.

The court therefore blocked California from enforcing that portion of the law against federal officers.

SB 1004 is California's attempt to correct that problem by bringing state peace officers under the prohibition as well.

What the bill would—and would not—do

The legislation does not create an absolute prohibition on anything covering an officer's face.

California law contains exceptions and definitions governing what counts as a prohibited facial covering. The measure also addresses agency policies and delays certain policy requirements until January 1, 2027.

That distinction matters.

The public-policy question is not whether an officer can ever cover their face. There can be legitimate medical, protective and operational reasons for doing so.

The accountability question is narrower:

When officers exercise government authority over someone, can the person—and later investigators—determine who those officers were?

That can matter after an arrest or disputed use of force.

Video can establish what happened. Records can establish which agency participated. But when an officer's identity is obscured, determining who personally performed an action can become more difficult.

For immigration enforcement, that question extends to ICE, Customs and Border Protection and other federal personnel operating in California.

What is verified

The California Legislature has passed SB 1004 and sent it to the governor.

The legislation expands the state's face-covering restrictions to state peace officers.

A federal judge previously blocked California from enforcing the original prohibition against federal officers because the law did not apply equally to comparable state officers.

The court also found that the federal government had not demonstrated that the face-covering prohibition itself directly regulated federal functions.

What remains unknown

Newsom has not yet signed or vetoed SB 1004.

Even if he signs it, further litigation is possible.

A new challenge could raise questions about the Supremacy Clause, federal immunity, enforcement mechanisms, exceptions to the prohibition and the practical ability of California to impose consequences on federal officers.

Passage of SB 1004 therefore should not be described as California having successfully forced ICE officers to uncover their faces.

The Legislature has taken the next legal step.

Whether that step survives federal litigation remains unresolved.

Why IABY is following this

Identification is part of accountability.

When someone alleges that an officer made an unlawful arrest, used excessive force or violated agency policy, investigators need to establish which officer did what.

That requires more than a uniform or an agency patch.

It requires an evidentiary trail connecting an individual officer to an individual action.

SB 1004 raises a larger question that extends well beyond California:

When federal immigration officers exercise government power in public, what information should the public be entitled to see so those officers can later be identified and held accountable for their individual actions?

That question remains open regardless of what happens to this particular bill.

**What happens next""

IABY will update this record when Newsom acts on SB 1004, if the federal government challenges the amended law, or if California issues guidance explaining how the restrictions will be enforced against federal immigration officers.

Watch IABY for updates. Subscribe free to get new reporting by email.

Sources

• California State Sen. Scott Wiener, August 28, 2026: announcement of final legislative passage of SB 1004 and reported final vote totals.
• California Senate Public Safety Committee: SB 1004 legislative analysis, including the proposed expansion to state peace officers and discussion of the February federal ruling.
• U.S. District Court for the Central District of California: United States of America v. State of California et al., Case No. 2:25-cv-10999-CAS-AJRx, February 9, 2026 preliminary-injunction ruling.

Method

IABY separates verified facts from allegations, inference and unresolved questions. Legislative claims in this report were checked against California legislative materials and the author's official announcement. The federal court's reasoning was checked against the February 9 order rather than characterized solely from political statements about the ruling.

AI tools assisted with research, organization, drafting, editing and verification. AI output is not evidence. Material facts are checked against source records before publication.

Join the record

If you witnessed an immigration-enforcement operation involving masked or unidentified officers, or possess photographs, video, court records, agency policies or other documentation relevant to officer identification, you can contact IABY.

Please protect private information belonging to detainees, witnesses and other vulnerable people before sharing material publicly.

Civil disagreement is welcome. Personal attacks are not.

Thank you to everyone helping with research, sourcing, fact-checking and the technical work that keeps this project going.

I write for you.

— Roberto

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