Carl Glimm
Carl Glimm is a Republican member of the Montana Senate, representing the 2nd district, and previously served in the Montana House. Entries naming him record his sponsorship of legislation later passed by the legislature, so he appears as a sponsor rather than an enacting or signing authority.
2026 Events (1)
Montana Gov. Gianforte signed SB 437 redefining sex as a fixed binary across state law, overriding transgender and intersex recognition
On March 24, 2026, Montana Gov. Greg Gianforte signed Senate Bill 437, which defines "sex" as a binary — male or female — based on reproductive anatomy across more than 60 provisions of state law and treats "gender" as a synonym for that biological definition rather than gender identity. The law requires transgender, nonbinary, intersex, and Two Spirit people to be designated by their sex assigned at birth on state documents such as driver's and marriage licenses. Sponsored by Sen. Carl Glimm, the measure had passed the Senate in April 2025 but sat unsigned for nearly a year before Gianforte and House Speaker Brandon Ler signed it the same day.
2023 Events (1)
Montana Gov. Gianforte signed SB 458 defining sex as binary, eliminating legal recognition of transgender and intersex residents
On May 20, 2023, Montana Gov. Greg Gianforte signed Senate Bill 458 into law, inserting binary, reproduction-based definitions of "male," "female," and "sex" into roughly 40 sections of state code. The statute defines sex strictly by chromosomes and gamete production "under normal development," eliminating legal recognition of transgender, nonbinary, and many intersex Montanans on documents such as birth certificates and driver's licenses. The bill, drafted in part by the Montana Family Foundation, passed the Legislature largely along party lines.
2021 Events (1)
Montana Gov. Gianforte signed SB 280, requiring surgery and a court order to amend a birth certificate's sex marker
On April 30, 2021, Montana Gov. Greg Gianforte signed Senate Bill 280, sponsored by Sen. Carl Glimm, reversing a 2017 Department of Public Health and Human Services rule that had let transgender Montanans update the sex designation on their birth certificate to match their gender identity. SB 280 instead required DPHHS to receive a court order confirming the person underwent gender-affirmation surgery before it would amend the sex marker, and took effect immediately upon signing.