# 119-hr-2378: Defining Male and Female Act of 2025

119-hr-2378, Defining Male and Female Act of 2025, is a 119th Congress bill sponsored by Rep. Miller, Mary E. [R-IL-15] (R-IL); status introduced (as of 2026-04-21).

- Canonical: https://policyrisk.com/legislation/119-hr-2378
- As of: 2026-04-21
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Bill: 119-hr-2378
- Congress: 119
- Title: Defining Male and Female Act of 2025
- Status: introduced
- Introduced: 2025-03-26
- Sponsor: Rep. Miller, Mary E. [R-IL-15] (R-IL)
- Cosponsors: 7
- Policy area: Civil Rights and Liberties, Minority Issues
- Touches household money: no
- Last recorded action: 2026-04-21

## Summary

**Defines 'sex' as an immutable, biologically determined category for federal law.** It would add a new Section 9 to Chapter 1 of Title 1, United States Code, inserting statutory definitions for 'male' and 'female' (each tied to biological characteristics at conception), plus 'man', 'woman', 'boy', 'girl', 'father', and 'mother', and directing federal laws, regulations, and agency interpretations to use those definitions while stating that 'gender identity' shall not be recognized by the Federal Government as a replacement for sex.

## Cosponsors (7)

- Rep. Tenney, Claudia [R-NY-24] (R-NY), 2025-03-26T00:00:00.000Z
- Rep. Onder, Robert F. [R-MO-3] (R-MO), 2025-03-26T00:00:00.000Z
- Rep. Moore, Barry [R-AL-1] (R-AL), 2025-03-26T00:00:00.000Z
- Rep. Estes, Ron [R-KS-4] (R-KS), 2025-03-26T00:00:00.000Z
- Rep. Biggs, Sheri [R-SC-3] (R-SC), 2025-04-01T00:00:00.000Z
- Rep. Harris, Andy [R-MD-1] (R-MD), 2025-04-01T00:00:00.000Z
- Rep. Greene, Marjorie Taylor [R-GA-14] (R-GA), 2025-09-03T00:00:00.000Z

## Provisions PRIA read

- New federal definitions of sex and gender: mixed, high. If enacted, this bill would set one federal set of definitions for sex-related terms. It would define boy, girl, man, woman, mother, and father by biological sex. "Male" and "female" would be based on sex at conception, tied to making sperm or eggs. "Gender identity" would not be recognized as a re…

## Related bills

- 119-hr-21: Born-Alive Abortion Survivors Protection Act
- 119-hr-979: AM Radio for Every Vehicle Act of 2025
- 119-hr-703: Main Street Tax Certainty Act
- 119-hr-425: Repealing Big Brother Overreach Act
- 119-hr-38: Constitutional Concealed Carry Reciprocity Act of 2025
- 119-hres-719: Honoring the life and legacy of Charles Charlie James Kirk.

## Sources
- [119-hr-2378 on Congress.gov](https://www.congress.gov/bill/119th-congress/house-bill/2378)

## Related
- [119-hr-21: Born-Alive Abortion Survivors Protection Act](https://policyrisk.com/legislation/119-hr-21)
- [119-hr-979: AM Radio for Every Vehicle Act of 2025](https://policyrisk.com/legislation/119-hr-979)
- [119-hr-703: Main Street Tax Certainty Act](https://policyrisk.com/legislation/119-hr-703)
- [119-hr-425: Repealing Big Brother Overreach Act](https://policyrisk.com/legislation/119-hr-425)
- [119-hr-38: Constitutional Concealed Carry Reciprocity Act of 2025](https://policyrisk.com/legislation/119-hr-38)
- [119-hres-719: Honoring the life and legacy of Charles Charlie James Kirk.](https://policyrisk.com/legislation/119-hres-719)
- [All bills in Congress](https://policyrisk.com/legislation)

Source: PRIA, https://policyrisk.com/legislation/119-hr-2378 (as of 2026-04-21).