Missouri Senate Bill 39

Missouri Senate Bill 39
Missouri Legislature
  • AN ACT To amend chapter 163, RSMo, by adding thereto one new section relating to participation in athletic competition, with a severability clause.
Citation[1]
Territorial extent Missouri
Enacted byMissouri Senate
EnactedMarch 23, 2023
Enacted byMissouri House of Representatives
EnactedMay 10, 2023
Signed byMike Parson
SignedJune 7, 2023
EffectiveAugust 28, 2023
Date of expiryAugust 28, 2027
Legislative history
First chamber: Missouri Senate
IntroducedDecember 1, 2022
First readingJanuary 4, 2023
Second readingJanuary 12, 2023
Third readingMarch 23, 2023
Voting summary
  • 25 voted for
  • 8 voted against
  • 1 absent
Second chamber: Missouri House of Representatives
First readingMarch 23, 2023
Second readingMarch 24, 2023
Third readingMay 10, 2023
Voting summary
  • 109 voted for
  • 49 voted against
  • 3 absent
  • 1 present not voting
Final stages
Finally passed both chambersMay 30, 2023
Summary
Prohibits transgender Missourians from competing in sports from K-12 through college that do not align with their biological sex, with limited exceptions.
Status: In force
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Missouri Senate Bill 39 (SB 39), also known as the Save Women's Sports Act, is a 2023 law in the state of Missouri that prohibits transgender Missourians from competing in school sports leagues that do not align with their biological sex. It was signed into law by Governor Mike Parson on June 7, 2023. The bill will expire on August 28, 2027, four years after its entry into force.

Senate Bill 39, along with Senate Bill 49 (relating to gender-affirming care), have been accused of being discriminatory or anti-transgender. As of September 2024, there are few policies in place to enforce Senate Bill 39 in Missouri schools. Three bills were introduced in 2025 to remove the expiration provision on Senate Bill 39.