After 11 months, Montana officials break stalemate on bill defining sex as binary

What to know about Montana’s new sex definition bill

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,” “sex,” and “gender.” Senate Bill 437 is largely similar to a 2023 law that was declared unconstitutional twice — first in June 2024, because its subject wasn’t clear in its title, and…

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.