FactHub curated dataset

State laws on girls' school sports eligibility, compared with Washington's I-638

Every U.S. state law or regulation (28 as of October 2026) that limits girls' school sports to students of female sex, coded from its official text for coverage (grades, college, private schools), how sex is determined or proved, and enforcement (private lawsuits, penalties on schools), beside Washington Initiative IL26-638 on the November 3, 2026 ballot.

Coverage: Laws enacted 2020-2025, status as of 2026-10-23; IL26-638 as filed June 2, 2025

Node: dataset:us-state-girls-sports-laws:1

What this dataset measures

Washington's No campaign calls IL26-638 'the Most Extreme Proposal of Its Kind In The U.S.' Testing that requires the measure's own text beside every enacted state rule of the same kind. The set is every state with a statute or state-level regulation restricting female-designated school teams to students of female sex, checked against the Movement Advancement Project's list (27 laws plus Alaska's regulation; Virginia's 2025 high-school league policy and the Pennsylvania and Wisconsin association policies are not state laws or regulations and are excluded). Each row was coded from the official statute, bill or regulation text, with verbatim excerpts in a second table.

Curated data tables

These related tables form this versioned dataset release. Each table has its own downloadable file and field definitions.

State measures compared

Coded provisions of each state girls'-sports eligibility law or regulation and of IL26-638.

Unit of observation: One state measure

View this table

state_laws.csv text/csv · 7.8 KB (7,943 bytes)
19 field definitions
FieldTypeMeaningUnitsValue type
abbrev string Two-letter state code (WA marks the proposed measure). — observed
state string State name. — observed
measure_type string law, regulation, or proposed initiative. — observed
citation string Statute, regulation or bill citation for the operative text. — observed
year_enacted integer Year the first such measure took effect or was enacted (2026 for the proposal). year observed
grade_scope string Which schools or grades the K-12 rule reaches, as the text states it. — observed
grade_floor integer Lowest grade the text explicitly covers; empty when the text states no grade limit. Secondary-school-only laws are coded 6 (FL, WV, NC), high-school-only 9 (AK). grade derived
covers_college string yes if the measure also covers college or university sports. — derived
covers_private_schools string yes, limited (only state-funded schools), or no. — derived
also_bars_girls_from_boys_teams string yes if the K-12 rule also restricts girls from boys' teams (in some cases only where a girls' team exists). — derived
k12_verification string How the K-12 rule determines or proves sex: birth_certificate, no_method_stated, parent_affidavit_all_athletes, provider_document_all_athletes, provider_statement_on_dispute, provider_statement_every_girl. — derived
routine_proof_required string Who must submit proof of sex with no dispute: none, all_athletes, every_girl. — derived
provider_role string Role of a health care provider: none, dispute_only, alternative, required_all_athletes, required_every_girl. — derived
medical_bases_listed string yes if the text lists the medical bases (anatomy, genetics, hormones) a provider must rely on. — derived
birth_certificate_role string primary (birth certificate determines or presumptively determines sex), primary_or_provider_affidavit, not_mentioned, not_mentioned_k12_primary_college, or not_a_listed_basis (IL26-638: the provider may rely only on three other bases). — derived
private_right_of_action string yes (students may sue for damages or full relief), limited (injunction-only, or college-only), or no. — derived
penalty_on_noncomplying_schools string yes if the text withholds state funds or bars teams from postseason play for noncompliance (TN, MO, GA). — derived
status_oct_2026 string Legal status as of October 23, 2026. — observed
primary_url string Official text the row was coded from. — observed

Verbatim provisions

The passages of official text each row was coded from.

Unit of observation: One quoted passage

View this table

state_law_quotes.csv text/csv · 47.9 KB (49,015 bytes)
5 field definitions
FieldTypeMeaningUnitsValue type
abbrev string State code, matching state_laws.csv. — observed
topic string What the passage addresses (coverage, verification, cause_of_action, and so on). — derived
locator string Section or subsection of the text. — observed
quote string Verbatim text, at most 500 characters. — observed
url string Page the passage was copied from. — observed

Supporting files

Source snapshots, manifests, quality reports, documentation, and other materials used to produce or review this release.

  • compare_state_laws.js Transformation manifest · text/javascript · 2.4 KB (2,481 bytes)

    Node.js script that recomputes the two saved analyses from state_laws.csv.

  • dataset_parts.json Documentation · application/json · 39.7 KB (40,619 bytes)

    The dataset's sources, table definitions and saved analyses as JSON, as stored in this version.

Saved analyses

How each state law compares with IL26-638, by dimension

Question: On each dimension of scope, verification and enforcement, how many of the 28 enacted state measures go further than IL26-638, match it, or go less far?

Result: Stricter than I-638: 25 cover college, 24 let harmed students sue, 6 also bar girls from boys' teams, 3 penalize noncomplying schools. Looser: 25 require no routine proof of sex from every girl, 27 require no provider sign-off for every girl, none routinely limits verification to anatomy, genes or testosterone, and 8 set a grade floor.

Operation: For each of eight coded dimensions, count enacted measures coded stricter than, the same as, or looser than the IL26-638 row.

Scope: 28 enacted state laws and regulations as of 2026-10-23

View this analysis

  • Dimensions are not weighted; which matter most is a judgment readers can make from the table.
  • Statute text only; association rules and enforcement practice are not measured.

How state K-12 laws determine sex

Question: What verification method does each enacted state measure use for K-12 girls' sports?

Result: 14 state laws state no method, 11 rely on the birth certificate (Kentucky also accepts a provider affidavit), 1 requires an annual parent affidavit (Oklahoma), 1 a doctor-signed document for every athlete (Nebraska), and 1 a provider statement only in disputes (Idaho). None requires the IL26-638 method for every girl.

Operation: Count enacted measures by coded k12_verification.

Scope: 28 enacted state laws and regulations as of 2026-10-23

View this analysis

  • Methods stated in implementing rules are not counted.

Sources

  1. Idaho: Idaho Code 33-6201 to 33-6206 Primary legal text for the Idaho row: coverage, verification method, and enforcement provisions.

    Retrieved October 23, 2026. Government legal text (public record). Statute and bill text is public; short verbatim excerpts are reproduced in state_law_quotes.csv.

    Reliability: Government. Official legislature, code revisor or agency publication of the enacted text. Some pages are bill text rather than the codified section; later amendments are noted in the row.

  2. Mississippi: Mississippi Fairness Act (SB 2536, 2021) Primary legal text for the Mississippi row: coverage, verification method, and enforcement provisions.

    Retrieved October 23, 2026. Government legal text (public record). Statute and bill text is public; short verbatim excerpts are reproduced in state_law_quotes.csv.

    Reliability: Government. Official legislature, code revisor or agency publication of the enacted text. Some pages are bill text rather than the codified section; later amendments are noted in the row.

  3. Tennessee: Tenn. Code Ann. 49-6-310 (2021); Pub. Ch. 1005 and 909 (2022) Primary legal text for the Tennessee row: coverage, verification method, and enforcement provisions.

    Retrieved October 23, 2026. Government legal text (public record). Statute and bill text is public; short verbatim excerpts are reproduced in state_law_quotes.csv.

    Reliability: Government. Official legislature, code revisor or agency publication of the enacted text. Some pages are bill text rather than the codified section; later amendments are noted in the row.

  4. Arkansas: Ark. Code Ann. 6-1-107 Primary legal text for the Arkansas row: coverage, verification method, and enforcement provisions.

    Retrieved October 23, 2026. Government legal text (public record). Statute and bill text is public; short verbatim excerpts are reproduced in state_law_quotes.csv.

    Reliability: Government. Official legislature, code revisor or agency publication of the enacted text. Some pages are bill text rather than the codified section; later amendments are noted in the row.

  5. Montana: MCA 20-7-1305 to 20-7-1307; MCA 49-2-307 (2025) Primary legal text for the Montana row: coverage, verification method, and enforcement provisions.

    Retrieved October 23, 2026. Government legal text (public record). Statute and bill text is public; short verbatim excerpts are reproduced in state_law_quotes.csv.

    Reliability: Government. Official legislature, code revisor or agency publication of the enacted text. Some pages are bill text rather than the codified section; later amendments are noted in the row.

  6. Alabama: Ala. Code 16-1-52 Primary legal text for the Alabama row: coverage, verification method, and enforcement provisions.

    Retrieved October 23, 2026. Government legal text (public record). Statute and bill text is public; short verbatim excerpts are reproduced in state_law_quotes.csv.

    Reliability: Government. Official legislature, code revisor or agency publication of the enacted text. Some pages are bill text rather than the codified section; later amendments are noted in the row.

  7. West Virginia: W. Va. Code 18-2-25d Primary legal text for the West Virginia row: coverage, verification method, and enforcement provisions.

    Retrieved October 23, 2026. Government legal text (public record). Statute and bill text is public; short verbatim excerpts are reproduced in state_law_quotes.csv.

    Reliability: Government. Official legislature, code revisor or agency publication of the enacted text. Some pages are bill text rather than the codified section; later amendments are noted in the row.

  8. Florida: Fla. Stat. 1006.205 Primary legal text for the Florida row: coverage, verification method, and enforcement provisions.

    Retrieved October 23, 2026. Government legal text (public record). Statute and bill text is public; short verbatim excerpts are reproduced in state_law_quotes.csv.

    Reliability: Government. Official legislature, code revisor or agency publication of the enacted text. Some pages are bill text rather than the codified section; later amendments are noted in the row.

  9. South Dakota: SDCL 13-67-1 to 13-67-4 Primary legal text for the South Dakota row: coverage, verification method, and enforcement provisions.

    Retrieved October 23, 2026. Government legal text (public record). Statute and bill text is public; short verbatim excerpts are reproduced in state_law_quotes.csv.

    Reliability: Government. Official legislature, code revisor or agency publication of the enacted text. Some pages are bill text rather than the codified section; later amendments are noted in the row.

  10. Texas: Tex. Educ. Code 33.0834; 51.980 (2023) Primary legal text for the Texas row: coverage, verification method, and enforcement provisions.

    Retrieved October 23, 2026. Government legal text (public record). Statute and bill text is public; short verbatim excerpts are reproduced in state_law_quotes.csv.

    Reliability: Government. Official legislature, code revisor or agency publication of the enacted text. Some pages are bill text rather than the codified section; later amendments are noted in the row.

  11. Oklahoma: 70 O.S. 27-106 Primary legal text for the Oklahoma row: coverage, verification method, and enforcement provisions.

    Retrieved October 23, 2026. Government legal text (public record). Statute and bill text is public; short verbatim excerpts are reproduced in state_law_quotes.csv.

    Reliability: Government. Official legislature, code revisor or agency publication of the enacted text. Some pages are bill text rather than the codified section; later amendments are noted in the row.

  12. Arizona: A.R.S. 15-120.02 Primary legal text for the Arizona row: coverage, verification method, and enforcement provisions.

    Retrieved October 23, 2026. Government legal text (public record). Statute and bill text is public; short verbatim excerpts are reproduced in state_law_quotes.csv.

    Reliability: Government. Official legislature, code revisor or agency publication of the enacted text. Some pages are bill text rather than the codified section; later amendments are noted in the row.

  13. Iowa: Iowa Code ch. 261I; 4.1A Primary legal text for the Iowa row: coverage, verification method, and enforcement provisions.

    Retrieved October 23, 2026. Government legal text (public record). Statute and bill text is public; short verbatim excerpts are reproduced in state_law_quotes.csv.

    Reliability: Government. Official legislature, code revisor or agency publication of the enacted text. Some pages are bill text rather than the codified section; later amendments are noted in the row.

  14. Utah: Utah Code 53G-6-901 to -904; 53G-7-1102 Primary legal text for the Utah row: coverage, verification method, and enforcement provisions.

    Retrieved October 23, 2026. Government legal text (public record). Statute and bill text is public; short verbatim excerpts are reproduced in state_law_quotes.csv.

    Reliability: Government. Official legislature, code revisor or agency publication of the enacted text. Some pages are bill text rather than the codified section; later amendments are noted in the row.

  15. Indiana: Ind. Code 20-33-13 (2022); HEA 1041 (2025, colleges) Primary legal text for the Indiana row: coverage, verification method, and enforcement provisions.

    Retrieved October 23, 2026. Government legal text (public record). Statute and bill text is public; short verbatim excerpts are reproduced in state_law_quotes.csv.

    Reliability: Government. Official legislature, code revisor or agency publication of the enacted text. Some pages are bill text rather than the codified section; later amendments are noted in the row.

  16. Louisiana: La. R.S. 4:441 to 4:446 Primary legal text for the Louisiana row: coverage, verification method, and enforcement provisions.

    Retrieved October 23, 2026. Government legal text (public record). Statute and bill text is public; short verbatim excerpts are reproduced in state_law_quotes.csv.

    Reliability: Government. Official legislature, code revisor or agency publication of the enacted text. Some pages are bill text rather than the codified section; later amendments are noted in the row.

  17. South Carolina: S.C. Code 59-1-500 Primary legal text for the South Carolina row: coverage, verification method, and enforcement provisions.

    Retrieved October 23, 2026. Government legal text (public record). Statute and bill text is public; short verbatim excerpts are reproduced in state_law_quotes.csv.

    Reliability: Government. Official legislature, code revisor or agency publication of the enacted text. Some pages are bill text rather than the codified section; later amendments are noted in the row.

  18. Kentucky: KRS 156.070(2)(g); KRS 164.2813 Primary legal text for the Kentucky row: coverage, verification method, and enforcement provisions.

    Retrieved October 23, 2026. Government legal text (public record). Statute and bill text is public; short verbatim excerpts are reproduced in state_law_quotes.csv.

    Reliability: Government. Official legislature, code revisor or agency publication of the enacted text. Some pages are bill text rather than the codified section; later amendments are noted in the row.

  19. Wyoming: W.S. 21-25-101 to -102; 21-25-301 (2025, colleges) Primary legal text for the Wyoming row: coverage, verification method, and enforcement provisions.

    Retrieved October 23, 2026. Government legal text (public record). Statute and bill text is public; short verbatim excerpts are reproduced in state_law_quotes.csv.

    Reliability: Government. Official legislature, code revisor or agency publication of the enacted text. Some pages are bill text rather than the codified section; later amendments are noted in the row.

  20. Kansas: K.S.A. 60-5601 to 60-5606 Primary legal text for the Kansas row: coverage, verification method, and enforcement provisions.

    Retrieved October 23, 2026. Government legal text (public record). Statute and bill text is public; short verbatim excerpts are reproduced in state_law_quotes.csv.

    Reliability: Government. Official legislature, code revisor or agency publication of the enacted text. Some pages are bill text rather than the codified section; later amendments are noted in the row.

  21. North Dakota: N.D.C.C. ch. 15.1-39; ch. 15-10.6 Primary legal text for the North Dakota row: coverage, verification method, and enforcement provisions.

    Retrieved October 23, 2026. Government legal text (public record). Statute and bill text is public; short verbatim excerpts are reproduced in state_law_quotes.csv.

    Reliability: Government. Official legislature, code revisor or agency publication of the enacted text. Some pages are bill text rather than the codified section; later amendments are noted in the row.

  22. Georgia: O.C.G.A. 20-2-315; 20-3-15 to 20-3-16 (2025) Primary legal text for the Georgia row: coverage, verification method, and enforcement provisions.

    Retrieved October 23, 2026. Government legal text (public record). Statute and bill text is public; short verbatim excerpts are reproduced in state_law_quotes.csv.

    Reliability: Government. Official legislature, code revisor or agency publication of the enacted text. Some pages are bill text rather than the codified section; later amendments are noted in the row.

  23. Missouri: RSMo 163.048 Primary legal text for the Missouri row: coverage, verification method, and enforcement provisions.

    Retrieved October 23, 2026. Government legal text (public record). Statute and bill text is public; short verbatim excerpts are reproduced in state_law_quotes.csv.

    Reliability: Government. Official legislature, code revisor or agency publication of the enacted text. Some pages are bill text rather than the codified section; later amendments are noted in the row.

  24. North Carolina: G.S. 115C-12(23); G.S. 116-400 to 116-403 (S.L. 2023-109) Primary legal text for the North Carolina row: coverage, verification method, and enforcement provisions.

    Retrieved October 23, 2026. Government legal text (public record). Statute and bill text is public; short verbatim excerpts are reproduced in state_law_quotes.csv.

    Reliability: Government. Official legislature, code revisor or agency publication of the enacted text. Some pages are bill text rather than the codified section; later amendments are noted in the row.

  25. New Hampshire: RSA 193:41 to 193:42 Primary legal text for the New Hampshire row: coverage, verification method, and enforcement provisions.

    Retrieved October 23, 2026. Government legal text (public record). Statute and bill text is public; short verbatim excerpts are reproduced in state_law_quotes.csv.

    Reliability: Government. Official legislature, code revisor or agency publication of the enacted text. Some pages are bill text rather than the codified section; later amendments are noted in the row.

  26. Ohio: R.C. 3313.5320; R.C. 3345.562 Primary legal text for the Ohio row: coverage, verification method, and enforcement provisions.

    Retrieved October 23, 2026. Government legal text (public record). Statute and bill text is public; short verbatim excerpts are reproduced in state_law_quotes.csv.

    Reliability: Government. Official legislature, code revisor or agency publication of the enacted text. Some pages are bill text rather than the codified section; later amendments are noted in the row.

  27. Alaska: 4 AAC 06.115(b)(5)(D) Primary legal text for the Alaska row: coverage, verification method, and enforcement provisions.

    Retrieved October 23, 2026. Government legal text (public record). Statute and bill text is public; short verbatim excerpts are reproduced in state_law_quotes.csv.

    Reliability: Government. Official legislature, code revisor or agency publication of the enacted text. Some pages are bill text rather than the codified section; later amendments are noted in the row.

  28. Nebraska: Laws 2025, LB 89 (Stand With Women Act) Primary legal text for the Nebraska row: coverage, verification method, and enforcement provisions.

    Retrieved October 23, 2026. Government legal text (public record). Statute and bill text is public; short verbatim excerpts are reproduced in state_law_quotes.csv.

    Reliability: Government. Official legislature, code revisor or agency publication of the enacted text. Some pages are bill text rather than the codified section; later amendments are noted in the row.

  29. Washington Secretary of State: Initiative Measure No. IL26-638, filed text Primary legal text of the proposed measure (Sections 2-3).

    Retrieved October 23, 2026. Government legal text (public record). Statute and bill text is public; short verbatim excerpts are reproduced in state_law_quotes.csv.

    Reliability: Government. Official filed text of the initiative as posted by the Secretary of State; it is the measure itself, not a summary.

  30. Supreme Court of the United States: West Virginia v. B.P.J., No. 24-43 (with Little v. Hecox, No. 24-38), opinion of June 30, 2026 Legal status of the Idaho and West Virginia laws, and the constitutional backdrop for every row.

    Retrieved October 23, 2026. U.S. government work. Public domain.

    Reliability: Government. The Court's slip opinion. It decides the Title IX and equal protection questions for two states' laws; it does not address other states' verification rules.

  31. Supreme Court of the United States: order list of June 30, 2026 (Petersen v. Doe, No. 24-449) Status of the Arizona row.

    Retrieved October 23, 2026. U.S. government work. Public domain.

    Reliability: Government. Official order list; it vacates and remands the Arizona appeal in light of B.P.J. without deciding it.

  32. Movement Advancement Project: Bans on transgender youth participation in sports Cross-check of which states have a law or regulation (MAP counts 27 by law plus 2 by regulation or agency policy, Alaska and Virginia, as of October 22, 2026).

    Retrieved October 23, 2026. Cited for facts; not redistributed. Not redistributed; cited only.

    Reliability: Advocacy group. MAP is an LGBTQ-rights think tank that opposes these laws. Its state list is used only as a completeness check against the primary texts; its map still showed Idaho as court-blocked after the June 2026 ruling.

Limitations and reproducibility

Reproducible: Every coded value can be checked against the official text linked in its row; state_law_quotes.csv holds the verbatim passages used. compare_state_laws.js recomputes both saved analyses from state_laws.csv.

  • Coding reflects statute and regulation text. Athletic-association rules that implement the laws (for example KSHSAA in Kansas, which reportedly uses the birth certificate in disputes) were not reviewed, so practice may be stricter or looser than the text.
  • Where a law states no verification method (14 states), schools and associations decide how sex is shown; 'no method stated' does not mean no proof is ever asked for.
  • Some codified pages could not be fetched; for those rows (Indiana, Louisiana, Oklahoma, Tennessee, Georgia, Mississippi, Nebraska) the text was read from enrolled bills or a reproduction of the code, and later amendments may be missed.
  • Grade floors for laws that say only "secondary schools" (Florida, West Virginia) are coded as grade 6, the usual start of middle school; the statutes do not state a grade.
  • IL26-638 is a proposal; its practical reach depends on implementing rules. Its text states no grade floor, but WIAA-sanctioned programs run grades 7-12, with 6th graders where a district opts in.
  • Legal status changes quickly; Arizona's injunction was unresolved after the Supreme Court vacated the appeal on June 30, 2026.
  • Coding was done by one coder and has not been double-coded.

Publications using this dataset

Version details

The exact citing versions, and the version of this dataset each cites.

  • Article wa-i638-officials-exam-claims — version 3 (published) cites version 1
  • Article wa-i638-most-extreme — version 4 (published) cites version 1
  • Article wa-i638-birth-certificates — version 4 (published) cites version 1
  • Chart i638-vs-state-laws-by-dimension — version 1 (published) cites version 1
  • Briefing wa-i-638 — version 5 (published) cites version 1
  • Briefing wa-i-638 — version 4 (published) cites version 1