Illinois · House Bill 4531 · 103rd General Assembly

CLASSIFICATION BY BIO SEX ACT

HB 4531 Sponsored by David Friess Died in committee

  1. Introduced Jan 19, 2024
  2. In committee Jan 31, 2024
  3. Died  
  4. Passed the Senate  
  5. To the governor  
  6. Became law  

What it does

The legislature's own summary of the bill, or its official long title.

Creates the Classification by Biological Sex Act. Sets forth findings. Provides that any public school or school district and any State, local agency, department or office that collects vital statistics for the purpose of complying with antidiscrimination laws or for the purpose of gathering accurate public health, crime, economic, or other data shall classify each individual who is part of the collected data set as…

Read the full title (110 words)

Creates the Classification by Biological Sex Act. Sets forth findings. Provides that any public school or school district and any State, local agency, department or office that collects vital statistics for the purpose of complying with antidiscrimination laws or for the purpose of gathering accurate public health, crime, economic, or other data shall classify each individual who is part of the collected data set as either male or female at birth. Amends the Statute on Statutes. Sets forth the meaning of the following terms as used in any statute or any rule or regulation: a person's sex; female and male; woman and girl; man and boy; and mother and father.

Every action

8 steps, oldest first, as the legislature records them.

  1. HouseFiled with the Clerk by Rep. David Friess
  2. HouseAdded Co-Sponsor Rep. Dan Caulkins
  3. HouseAdded Co-Sponsor Rep. Blaine Wilhour
  4. HouseAdded Co-Sponsor Rep. Adam M. Niemerg
  5. HouseFirst Reading
  6. CommitteeReferred to Rules Committee · House Rules
  7. HouseAdded Co-Sponsor Rep. Kevin Schmidt
  8. HouseSession Sine Die

Roll calls

No recorded votes on this bill yet.

Sponsors

The member who introduced it, joined by 3 cosponsors: 3 Republicans.

All 3 cosponsors

From Illinois's official records (www.ilga.gov), checked Nov 13, 2026. Text links go to the official versions; LegiList does not copy bill text.