US EditionMontana Governor Signs Law Defining Sex by Reproductive System
Senate Bill 437 fixes sex definitions as male or female based on reproductive anatomy, impacting over 60 legal sections including licenses and anti-discrimination laws.
- On Tuesday, Governor Greg Gianforte signed Senate Bill 437, defining sex as binary based on reproductive systems and amending more than 60 sections of Montana law.
- Senate Bill 437 is largely similar to a 2023 law declared unconstitutional twice; Senator Carl Glimm sponsored the measure, arguing clear legal definitions for male and female have become necessary.
- The new definitions impact driver's licenses, marriage licenses, and anti-discrimination protections. Missoula Democrat Representative Zooey Zephyr stated the law discriminates against trans people and erases nonbinary and Two-Spirit people "from cradle to grave."
- Rylee Sommers-Flanagan, executive director of Upper Seven Law, said the firm will seek a preliminary injunction to halt the law, filing a supplemental complaint in district court by April 6.
- House Speaker Brandon Ler held the legislation for four months before signing it, while Representative Zephyr noted the 2027 legislative session depends on the makeup of the Legislature following this year's election.
21 Articles
21 Articles
Montana officials sign bill defining sex as binary
Montana officials last week signed into law a bill defining sex as binary in what would be a routine order of business for the Republican state Legislature and GOP governor's office, except that lawmakers passed the legislation nearly a year…
Montana House speaker defends decision to delay "biological sex" bill
Montana House Speaker Rep. Brandon Ler, R-Savage, says it was justifiable to hold onto a bill from last years legislative session for months, to give it a better chance of getting its own hearing in court. However, he says he allowed it to move forward last week because it no longer made sense to continue delaying it.It was just time to move it along in the process, Ler told MTN Monday.(Watch the video for more of Ler's explanation of his decisi…
ABC FOX Montana
Bill redefining sex signed nearly a year after it passed
Gov. Greg Gianforte last week signed the final bill passed during the 2025 legislative session defining sex in state law, likely spawning a protracted legal fight. Senate Bill 437, which defines sex as only male or female, was signed on…
Bozeman Daily Chronicle
After 11 months, Montana officials break stalemate on bill defining sex as binary
The bill's signing this week means it will most likely be folded into an ongoing legal challenge against a similar bill passed in 2023 defining sex as binary.
What to know about Montana’s new sex definition bill – UK Times
For free real time breaking news alerts sent straight to your inbox sign up to our breaking news emails Sign up to our free breaking news emails Sign up to our free breaking news emails Nearly a year after it passed the Legislature, Gov. Greg Gianforte signed a bill Tuesday defining sex as binary, based on a person’s reproductive system. The move officially amends wide ranging sections of Montana law to include new definitions of “male,” “female…
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