The 9th Circuit has reversed itself and temporarily blocked parts of California’s AB 1955 after the Supreme Court’s decision in Mirabelli v. Bonta strengthened parents’ claims to standing in challenges to school gender policies. The appeals court granted an injunction limited to the named plaintiffs and information about their own children who are showing signs of gender dysphoria, pausing enforcement while the appeal moves forward. This move follows a quick legal pivot after SCOTUS recognized parental substantive due process rights in the Mirabelli ruling. The decision signals that federal courts are increasingly treating parental notification rules as constitutionally suspect when they interfere with a parent’s right to direct a child’s upbringing.

9th Circuit Reverses Course, Blocks California’s Parent Notification Law After SCOTUS’ Mirabelli Ruling

On Friday the federal appeals court reopened a fight over AB 1955, the California law that bars schools from requiring employees to notify parents about a student’s gender identity or gender expression without the student’s consent. The law had survived early challenges when lower courts found the plaintiffs lacked Article III standing, and the 9th Circuit twice denied injunctive relief pending appeal. The landscape changed after the Supreme Court’s March decision in Mirabelli v. Bonta.

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In Mirabelli, the Supreme Court held that parents challenging school gender policies likely do have standing because they are the direct objects of exclusionary school rules. The justices affirmed that parents possess a substantive due process right to direct their children’s upbringing, including the right to be informed when a school learns a child is exhibiting symptoms of gender dysphoria. That finding undercut the earlier rationale used by the district court and the 9th Circuit when they refused to block AB 1955.

Plaintiffs in the AB 1955 case include the city of Huntington Beach and several parents who sued on constitutional grounds, arguing that the statute prevents schools from giving them critical information about their own children. After Mirabelli, those parents asked the 9th Circuit to reconsider its prior refusals to enjoin enforcement of the law. The panel agreed that the Supreme Court’s ruling changed the legal landscape enough to warrant a fresh look at standing and the balance of harms.

The 9th Circuit’s Friday order grants an injunction pending appeal, but it is narrowly tailored: it prevents the state from enforcing parts of AB 1955 only against the named plaintiffs and only insofar as those portions would withhold information about the plaintiffs’ own children who are showing symptoms of gender dysphoria. That narrowness matters as a legal and strategic point because it limits relief to the parties who can show a concrete injury right now, while leaving the overall statute intact for others for the moment.

This reversal highlights how one Supreme Court decision can ripple quickly through related litigation, changing calculations about standing and the protections of parental rights. From a Republican perspective, the prompt response by the 9th Circuit is a welcome development because it respects the constitutional role of parents in directing their children’s upbringing. Courts are beginning to recognize that policies which keep parents in the dark about serious mental health and identity concerns can violate substantive due process.

Practically, the injunction means California school districts cannot enforce the challenged provisions of AB 1955 against these plaintiffs while the appeal proceeds. The case will proceed through the ordinary appellate process with briefing and possibly oral argument to decide the merits of the constitutional claims. That process could take months, and it may ultimately require the Supreme Court to weigh in again if the appeals court’s eventual ruling conflicts with higher-court precedents.

Legal observers will watch closely to see whether other courts follow the 9th Circuit’s lead and apply Mirabelli beyond its specific facts to other parental-rights challenges. A string of favorable appellate rulings would put sustained pressure on state and local rules that bar schools from notifying parents about a child’s gender-related behaviors. For conservative advocates, the potential is significant: a clear line protecting parental notice and involvement in these situations would reshape school policy nationwide.

The decision also underscores the tactical value of targeting standing when raising constitutional challenges. By persuading the 9th Circuit that Mirabelli created a concrete injury for parents, the plaintiffs cleared a threshold hurdle that had blocked them earlier. That success shows that careful framing—demonstrating how a law uniquely injures specific parents and children—can unlock judicial review even in a court that has been skeptical in past cases.

For now, California cannot enforce the specified parts of AB 1955 against the named plaintiffs regarding their own children, and the appeal will determine where the law stands beyond this narrow injunction. The case will test how far Mirabelli reaches and whether courts will consistently protect parents from school policies that exclude them from knowledge of their children’s serious gender-related struggles. Expect continued litigation as parents and states press competing visions of school authority and family rights.