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Federal Law Defines Sex as Binary Biological Category Based on Reproductive System.

This Act establishes uniform, biological definitions for "male" and "female" across all federal laws and regulations. Sex is defined strictly by reproductive capacity (producing eggs or sperm), regardless of self-identification. This means that under federal law, sex is a fixed biological trait, and gender identity is explicitly separated from the legal definition of sex.
Key points
The term "sex" in federal law will be defined exclusively as a binary biological category (male or female), based on the reproductive system.
"Gender identity" is legally separated from the definition of "sex" and cannot be used as a synonym in interpreting federal statutes.
Federal agencies and courts must use these biological definitions when interpreting existing and future legislation, potentially affecting rules for single-sex facilities and sports leagues.
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Additional Information
Print number: 118_S_5356
Sponsor: Sen. Marshall, Roger [R-KS]
Process start date: 2024-11-20
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Summarized by: gemini-flash-latest
Source data: api.congress.gov
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OFFICIAL LEGAL TITLE

Defining Male and Female Act of 2024

FREQUENTLY ASKED QUESTIONS

What is the official ID of this bill?

The official print number for this legislation is 118_S_5356.

Which chamber initiated this legislation?

This legislation was initiated in the Senate.

When did the legislative process begin?

The process officially started on 2024-11-20.

What are the main provisions?

Key points include:

  • The term "sex" in federal law will be defined exclusively as a binary biological category (male or female), based on the reproductive system.
  • "Gender identity" is legally separated from the definition of "sex" and cannot be used as a synonym in interpreting federal statutes.
  • Federal agencies and courts must use these biological definitions when interpreting existing and future legislation, potentially affecting rules for single-sex facilities and sports leagues.
What is the specific legal status?

The current status is Expired.

Where can I read the full text of this legislation?

The full official text is available at: View full text

Who is the primary sponsor?

The primary sponsor is Sen. Marshall, Roger [R-KS].

What is the latest detailed status?

The latest detailed status is: Introduced in Senate

Is this summary verified?

Yes. This content was analyzed by AI and verified by the Lustra Judge System on 2025-12-26.

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Courts and Law