Medical care for minorsLitigation-setback▾
SB99 was enacted. The Montana Supreme Court affirmed the preliminary injunction (2024 MT 303). A Missoula district court permanently blocked it on 13 May 2025 (Cross v. State). The statute is on the books; courts blocked it. Not enforced.
Montana Supreme Court (2024 MT 303)
MedicaidCoverage ended (minors)▾
From 13 Oct 2026, Montana Medicaid and HMK/CHIP no longer pay for puberty blockers, cross-sex hormones, or surgery for minors when the purpose is a gender transition. Cross-sex hormones already in use can be covered through a taper until 13 Apr 2027. Mental health care stays covered.
Montana DPHHS provider notice, 7 Oct 2026
State employeesCovers▾
State-employee health plans pay for sex-change procedures with taxpayer money.
Medical - Benefits Division | Montana Department of Administration (doa.mt.gov)
SportsSex-based▾
Girls' sports are protected: state law keeps males out of girls' and women's teams (K-12 and higher education*).
HB112
FacilitiesSex-based (schools + government buildings) (enjoined)▾
Bathrooms and changing rooms in K-12 schools, and government buildings are separated by sex, so males stay out of women's and girls' spaces. HB 121 is temporarily blocked by a state court (Perkins v. State) while the Montana Supreme Court hears the appeal.
HB121 (2025)
Pronouns and parent noticeParental consent for names/pronouns▾
Teachers need a parent's permission before using a different name or pronouns that don't match their sex for a child.
SB518
CurriculumParental opt-in▾
Parents must be notified and must opt their child in before any lessons on sexual orientation or gender identity.
Montana HB 471
Sex definitionDefined by biology▾
ID markersBirth-certificate sex changed by self-declaration▾
Birth-certificate sex changed by self-declaration; licence sex change needs surgery, court order or amended birth certificate.
Gender Designation Form (dphhs.mt.gov)
Shield lawNone▾
No shield law.
No shield statute identified
AdultsNo state law▾
No state law restricts adults or public funding for adult sex-change procedures.
No state law identified (statute review, Oct 2026)
DetransitionUntil age 25 (up to 30 on discovery)▾
Someone treated as a minor can sue until age 25, or within 2 years of discovering the harm, but no later than age 30.
MCA § 27-2-219 (HB 682, 2025)
PrisonsCase-by-case (policy); HB 121 sex-separation enjoined▾
HB 121 (2025) requires prison sleeping quarters, restrooms and changing rooms to be separated by sex. It is temporarily enjoined (Perkins v. State) while the Montana Supreme Court appeal is pending. DOC procedure is case by case.
MSP Operational Procedure 1.1.17; HB 121 (2025, Ch. 33)
Pending billsNo active bills▾
No active bills (checked 13 Oct 2026). The 2026 regular session has adjourned (or the legislature does not meet in 2026), so 2025-26 bills are no longer moving. LegiScan search linked.
LegiScan search, checked 13 Oct 2026 (adjourned legislature)
LitigationActive▾
Cross v. State: Montana Supreme Court affirmed the preliminary injunction (2024 MT 303); permanent injunction 13 May 2025.
Montana court order (Montana Judicial Branch document service)
Key datesNone upcoming▾
No upcoming effective dates or court deadlines identified.
Review, Oct 2026
Sources
- Montana Supreme Court (2024 MT 303)
- Montana DPHHS provider notice, 7 Oct 2026
- Medical - Benefits Division | Montana Department of Administration (doa.mt.gov)
- HB112
- HB121 (2025)
- SB518
- Montana HB 471
- SB 437
- Gender Designation Form (dphhs.mt.gov)
- MCA § 27-2-219 (HB 682, 2025)
- MSP Operational Procedure 1.1.17; HB 121 (2025, Ch. 33)
- LegiScan search, checked 13 Oct 2026 (adjourned legislature)