Defining Male and Female Act of 2025
- Bill Number
- H.R. 2378
- Origin Chamber
- House
- Congress
- 119th Congress, Session 1
- Policy Area
- Civil Rights and Liberties, Minority Issues
- Status
- Introduced
- Latest Action
- 2025-03-26: Referred to the House Committee on the Judiciary.
- Last Updated
- 2025-12-05T22:54:39Z
AI-Generated Summary
Purpose
The Defining Male and Female Act of 2025 aims to create uniform, biology-based definitions for terms related to sex and gender in federal law. It seeks to ensure that these terms are interpreted consistently across all U.S. laws, regulations, and agency rulings, emphasizing immutable biological characteristics determined at conception rather than subjective or social factors.
Key Provisions
- Addition to U.S. Code: The bill amends Chapter 1 of Title 1 of the United States Code by inserting a new Section 9, which provides definitions applicable to any Act of Congress or federal agency interpretations.
- Specific Definitions:
- Boy: A minor human male.
- Father: A male parent.
- Female: A natural person whose reproductive system, at conception, functions to produce eggs (ova).
- Gender identity: An internal, subjective sense of self that is disconnected from biological sex and exists on a spectrum; it is explicitly not recognized by the federal government as a substitute for biological sex in legal identifications.
- Girl: A minor human female.
- Male: A natural person whose reproductive system, at conception, functions to produce sperm.
- Man: An adult human male (unless used generically for all humans).
- Mother: A female parent.
- Sex: An immutable biological classification of a person as either male or female, based solely on the definitions above.
- Woman: An adult human female.
- These definitions apply when referring to natural persons and prioritize biological function over other considerations.
Significant Changes to Existing Law
- This bill introduces mandatory biological definitions into the "rules of construction" section of the U.S. Code, which guides how federal laws are interpreted. Previously, terms like "sex" in laws (e.g., Title VII of the Civil Rights Act) have been interpreted more broadly by courts and agencies to include gender identity and expression, as seen in rulings like Bostock v. Clayton County (2020). The new section would override such interpretations by locking in biology-based meanings, potentially narrowing the scope of protections against discrimination based on gender identity.
Potential Impacts
- On Government Agencies: Federal departments (e.g., Department of Justice, Health and Human Services) would need to align all rulings, regulations, and policies with these definitions, affecting areas like employment discrimination, healthcare access, and military service. This could require revising existing guidelines, such as those on transgender rights under Title IX.
- On Citizens: Individuals identifying as transgender or non-binary may face challenges in legal recognition of their gender identity for federal purposes, such as passports, benefits, or anti-discrimination claims. It could limit access to services tailored by sex (e.g., bathrooms, sports) based on birth biology, while reinforcing traditional binary classifications for others.
- On International Relations: Minimal direct impact, though it might influence U.S. positions in global human rights discussions, potentially conflicting with international standards (e.g., UN guidelines on gender diversity) and straining alliances that prioritize inclusive LGBTQ+ policies.
Main Stakeholders Affected
- Federal Government and Agencies: Responsible for implementing and enforcing the definitions in laws and programs.
- Citizens, Particularly Transgender and Non-Binary Individuals: Directly impacted by how their identities are legally recognized or restricted.
- LGBTQ+ Advocacy Groups: Likely to oppose the bill for limiting protections; conversely, conservative and religious organizations may support it for aligning law with biological norms.
- Employers and Educational Institutions: Affected in complying with federal anti-discrimination rules, potentially facing lawsuits over sex-based policies.
- Judiciary and Lawmakers: Courts may see increased challenges; Congress could face debates on related legislation.
Notable Legal, Constitutional, or Political Implications
- Legal Implications: The bill could preempt or conflict with judicial precedents expanding "sex" to include gender identity, leading to litigation in federal courts. It mandates a strict biological test, which might simplify some legal interpretations but complicate others involving intersex conditions or medical transitions.
- Constitutional Implications: Potential challenges under the Equal Protection Clause of the 14th Amendment, as it may be seen as discriminating against transgender individuals by denying recognition of their identity. It could also raise free speech or due process concerns if applied to personal expressions of gender.
- Political Implications: As an introduced bill (referred to the House Judiciary Committee on March 26, 2025), it reflects partisan divides, with sponsors from conservative ranks. Passage could energize culture-war debates, influencing elections and policy in areas like education and healthcare, but it risks backlash from civil rights advocates.
This summary was generated by AI and may contain inaccuracies. Refer to the official source document for the authoritative text.
Sponsor
Rep. Miller, Mary E. [R-IL-15]
Cosponsors (7)
Rep. Tenney, Claudia [R-NY-24], Rep. Onder, Robert [R-MO-3], Rep. Moore, Barry [R-AL-1], Rep. Estes, Ron [R-KS-4], Rep. Biggs, Sheri [R-SC-3], Rep. Harris, Andy [R-MD-1], Rep. Greene, Marjorie Taylor [R-GA-14]
Recent Actions
- 2025-03-26: Referred to the House Committee on the Judiciary.
- 2025-03-26: Introduced in House
- 2025-03-26: Introduced in House
Bill Versions
- Defining Male and Female Act of 2025 — issued 2025-03-26 — PDF (3 pages)