Montana Supreme Court blocks limits on transgender birth certificate changes

Transgender Montanans in Lewis and Clark County will keep a path to birth certificates and driver’s licenses that match their identities, after the Montana Supreme Court left in place a Helena judge’s order blocking state limits on sex-designation changes.

The 5-2 ruling in Kalarchik v. State, issued April 14, kept a preliminary injunction from Lewis and Clark County District Court Judge Mike Menahan in force while the case moves forward. For now, that means transgender residents are not barred by state policy from seeking documents that align with their gender identity, a difference that can affect everything from a DMV visit to school records, health care paperwork and other routine ID checks.

The case was brought by two transgender women, Jessica Kalarchik and Jane Doe. One lives in Montana and the other in Alaska. Their challenge targeted policies that followed Senate Bill 458, the 2023 law passed by the Republican-controlled Legislature that defined sex as binary. After the law took effect, the Montana Department of Public Health and Human Services said it would stop amending birth certificates based on gender transition, gender identity or change of gender.

Menahan’s December 2024 injunction stopped enforcement of those policies on a temporary basis, and the Supreme Court kept that protection alive. The majority said the challenged policy likely violates the Montana Constitution’s equal protection protections and the Individual Dignity Clause, and it rejected the state’s argument that the plaintiffs lacked standing or that the district court had overstepped. The ruling does not permanently strike down the law, and the broader constitutional fight is still headed toward a full trial.

Lewis and Clark County has been central to the dispute because the injunction came out of its district court in Helena, placing local judicial action at the center of a statewide fight over identity documents. The practical effect is immediate for transgender people who need accurate records to move through daily life without repeated mismatches between who they are and what state records show.

The political stakes remain high. Supporters of SB 458 argued the state should keep sex and gender separate in law for consistency, while the Montana Chapter of the American Academy of Pediatrics said the measure was inaccurate and failed to account for people with chromosomal variations or diverse gender identity. For now, the Supreme Court’s decision keeps Montana agencies from enforcing the restrictions while the case continues through the courts.