Key keywords: ICE mask ban, California immigration policy, federal court ruling, California Assembly Bill 1768, undocumented immigrant rights, federal immigration enforcement jurisdiction, law enforcement officer safety, immigration enforcement transparency A new ruling from the U.S. District Court for the Central District of California has effectively blocked the state’s second attempt to implement a ban on U.S. Immigration and Customs Enforcement (ICE) agents wearing masks during enforcement operations, marking a major win for federal immigration authorities and a setback for California’s progressive immigration policy agenda. First introduced in early 2023 by Democratic Assemblymember Miguel Santiago, the proposed ban aimed to mandate that all ICE personnel show their faces and clearly display official identification during all in-person interactions with the public, with exceptions only for active, federally declared public health emergencies. Lawmakers behind the bill cited dozens of documented cases across the state where plainclothes ICE agents wore masks and generic unmarked clothing to pose as public health workers, social services staff, or even local police officers to gain access to immigrant communities and carry out surprise deportations. Proponents argued the ban would increase transparency for immigration enforcement and reduce widespread fear among undocumented residents, who often avoid reporting crimes, accessing medical care, or enrolling their children in school over concerns of interacting with disguised ICE agents. This marked the second time California had attempted to pass such a regulation; a nearly identical 2021 bill was struck down by the same court, which ruled that state legislatures do not have the authority to impose operational rules on federal law enforcement agencies. In the 2024 ruling released Tuesday, Judge R. Gary Klausner echoed that earlier decision, writing that the proposed ban “unconstitutionally interferes with the federal government’s exclusive authority to set immigration enforcement policies and protect the safety of its personnel.” Klausner also cited sworn testimony from ICE leadership noting that more than 60% of frontline ICE agents assigned to California have received targeted, violent threats related to their work, and that wearing masks prevents bad actors from identifying officers and targeting them or their family members when they are off duty. As of press time, state officials have not yet announced whether they plan to appeal the ruling, but a spokesperson for California Attorney General Rob Bonta said the office is “reviewing the decision carefully to explore all possible paths forward to protect the transparency and rights of California’s immigrant communities.” Immigrant rights groups across the state have expressed outrage at the decision, while federal law enforcement unions have praised the ruling as a critical safeguard for frontline officers carrying out high-risk operations.