---
type: "Bill"
title: "Establishes guidelines for student participation in athletic contests organized by sex"
description: "Establishes guidelines for student participation in athletic contests organized by sex"
jurisdiction: "us/states/mo"
legislature: "Missouri General Assembly"
session: "2023"
identifier: "SB 39"
citation: "Missouri SB 39 (2023)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Thompson Rehder"]
version_count: 3
action_count: 39
vote_count: 0
first_action: "2022-12-01T06:00:00+00:00"
last_action: "2023-06-07T05:00:00+00:00"
source: "openstates"
source_identifier: "ocd-bill/52e0df27-a8ef-4f4d-bc53-997e17bf2c66"
source_url: "http://www.senate.mo.gov/23info/BTS_Web/Bill.aspx?SessionType=R&BillID=44496"
source_hash: "4145a0bf4910661e5ee5c95160a00ee798fb5c2a010bbcd67814dc51b101a4d4"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-mo"]
---

# Missouri SB 39 (2023) — Establishes guidelines for student participation in athletic contests organized by sex

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **Introduced** (filed) — [source](https://www.senate.mo.gov/23info/pdf-bill/intro/SB39.pdf)
2. **0815S.06F - SS #2 Adopted** (committee substitute) — [source](http://www.senate.mo.gov/23info/BTS_Web/ShowAmendment.aspx?Id=203)
3. **Missing description** (committee substitute) — [source](https://www.senate.mo.gov/23info/pdf-bill/perf/SB39.pdf)

## Sponsors

- Thompson Rehder — primary (person)
- Curtis Trent — cosponsor (person)
- Denny Hoskins — cosponsor (person)
- Elaine Gannon — cosponsor (person)
- Jason Bean — cosponsor (person)
- Jill Carter — cosponsor (person)
- Karla Eslinger — cosponsor (person)
- Mary Elizabeth Coleman — cosponsor (person)
- Mike Moon — cosponsor (person)
- Rick Brattin — cosponsor (person)
- Rusty Black — cosponsor (person)
- Tony Luetkemeyer — cosponsor (person)
- Travis Fitzwater — cosponsor (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2022-12-01T06:00:00+00:00** Prefiled
- **2023-01-04T06:00:00+00:00** S First Read `reading-1`
- **2023-01-12T06:00:00+00:00** Second Read and Referred S Emerging Issues Committee `reading-2, referral-committee`
- **2023-01-31T06:00:00+00:00** Hearing Conducted S Emerging Issues Committee
- **2023-02-02T06:00:00+00:00** Voted Do Pass S Emerging Issues Committee `committee-passage`
- **2023-02-02T06:00:00+00:00** Reported from S Emerging Issues Committee
- **2023-02-06T06:00:00+00:00** Bill Placed on Informal Calendar
- **2023-03-20T05:00:00+00:00** SS S offered (Thompson-Rehder)--(0815S.05F)
- **2023-03-20T05:00:00+00:00** SA 1 to SS S offered (Moon)--(0815S05.05S)
- **2023-03-20T05:00:00+00:00** SA 1 to SA 1 to SS S offered (Moon)--(0815S05.07S)
- **2023-03-20T05:00:00+00:00** SS S withdrawn
- **2023-03-20T05:00:00+00:00** Bill Placed on Informal Calendar
- **2023-03-20T05:00:00+00:00** SS#2 S offered & adopted (Thompson Rehder, et al)--(0815S.06F)
- **2023-03-20T05:00:00+00:00** Perfected
- **2023-03-21T05:00:00+00:00** Reported Truly Perfected S Rules, Joint Rules, Resolutions and Ethics Committee
- **2023-03-21T05:00:00+00:00** Referred S Fiscal Oversight Committee `referral-committee`
- **2023-03-23T05:00:00+00:00** Voted Do Pass S Fiscal Oversight Committee `committee-passage`
- **2023-03-23T05:00:00+00:00** Reported from S Fiscal Oversight Committee
- **2023-03-23T05:00:00+00:00** S Third Read and Passed `passage, reading-3`
- **2023-03-23T05:00:00+00:00** H First Read `reading-1`
- **2023-03-24T05:00:00+00:00** H Second Read `reading-2`
- **2023-03-24T05:00:00+00:00** Referred H General Laws `referral-committee`
- **2023-04-11T05:00:00+00:00** Hearing Conducted H General Laws
- **2023-04-13T05:00:00+00:00** Voted Do Pass H General Laws `committee-passage`
- **2023-04-13T05:00:00+00:00** Reported Do Pass H General Laws `committee-passage`
- **2023-04-17T05:00:00+00:00** Referred H Rules - Legislative Oversight `referral-committee`
- **2023-04-19T05:00:00+00:00** Voted Do Pass H Rules - Legislative Oversight `committee-passage`
- **2023-04-20T05:00:00+00:00** Reported Do Pass H Rules - Legislative Oversight `committee-passage`
- **2023-05-08T05:00:00+00:00** Referred H Fiscal Review Committee `referral-committee`
- **2023-05-09T05:00:00+00:00** Voted Do Pass H Fiscal Review `committee-passage`
- **2023-05-09T05:00:00+00:00** Reported Do Pass H Fiscal Review `committee-passage`
- **2023-05-10T05:00:00+00:00** Bill Placed on Informal Calendar
- **2023-05-10T05:00:00+00:00** H Third Read and Passed `passage, reading-3`
- **2023-05-10T05:00:00+00:00** Truly Agreed To and Finally Passed `passage`
- **2023-05-30T05:00:00+00:00** Reported Duly Enrolled Rules, Joint Rules, Resolutions & Ethics Committee
- **2023-05-30T05:00:00+00:00** Signed by Senate President Pro Tem
- **2023-05-30T05:00:00+00:00** Signed by House Speaker
- **2023-05-30T05:00:00+00:00** Delivered to Governor
- **2023-06-07T05:00:00+00:00** Signed by Governor `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/52e0df27-a8ef-4f4d-bc53-997e17bf2c66`. Confidence: reported (aggregated from official Missouri legislature records).