The Montana Supreme Court has struck down state policies that prevent transgender residents from updating government-identification documents to align with their preferred gender identity, ruling in a 5-2 decision that such restrictions violate the state constitution.
In its majority opinion authored by Justice Laurie McKinnon, the court declared: “Transgender discrimination is, by its very nature, sex discrimination.” The ruling also emphasized that discrimination based on sex is expressly prohibited under Montana’s unique nondiscrimination clause.
The court blocked the Montana Department of Public Health and Human Services and the Department of Justice from enforcing policies that bar transgender individuals from amending birth certificates or driver’s licenses to reflect their gender identity. This decision reverses a 2023 state law, Senate Bill 458, which defined “sex” as binary and based on biological and genetic indicators at birth. Shortly after implementation, state agencies stopped updating identification documents for transgender residents.
Two transgender Montanans sued the state in 2024, arguing the policies violated their constitutional rights to equal protection. A lower court had previously blocked enforcement of the law, finding that cisgender and transgender residents are equivalent in all relevant respects except gender identity—yet only cisgender individuals could legally update documents to match their gender identity.
The Montana Supreme Court upheld the lower court’s ruling, stating that the state’s policies force transgender residents to disclose private information about their gender identity during routine interactions like traffic stops, voting, employment applications, or air travel. The majority noted: “It is the state’s policies that cause plaintiffs to suffer these real and repeated injuries.”
Justice Beth Baker joined the majority in a concurrence, while Chief Justice Cory Swanson and Justice Jim Rice dissented, arguing the ruling represented a political decision cloaked in constitutional language. The court’s 5-2 split decision highlights deep divisions over gender identity rights under Montana law.
One plaintiff, identified as “Jane Doe,” testified that law enforcement detained her due to uncertainty about her identity after her driver’s license listed her as male while she presented as female. The majority opinion confirmed the plaintiffs’ constitutional rights were violated because the state constitution provides broader protections than federal law requires.