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Most state laws reach further than I-638, except on verifying every girl

For eight dimensions of scope, verification and enforcement, the number of the 28 enacted state girls'-sports eligibility laws and regulations that go further than Washington's IL26-638, match it, or go less far.

Credit: FactHub Research Team, coded from official state statutes and regulations

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Stacked bars for eight dimensions, each totaling 28 states. Stricter than I-638: 25 states cover college sports, 24 let harmed students sue, 6 also bar girls from boys' teams, 3 penalize noncomplying schools. Looser than I-638: 25 require no routine proof of sex from every girl, 27 require no provider sign-off for every girl, 28 do not routinely limit verification to anatomy, genes or testosterone, and 8 set a grade floor. — IL26-638 is looser than most state laws on scope and enforcement: 25 of 28 also cover college sports and 24 let harmed students sue, which I-638 does not. It is stricter than nearly all of them on verification: only Oklahoma, Utah and Nebraska require proof of sex from every athlete, only Nebraska requires a doctor's signature for every athlete, and none routinely limits the check to anatomy, genetics or testosterone as I-638 does for every girl.

What this chart asks

On which dimensions is IL26-638 stricter or looser than the 28 enacted state measures of its kind?

Why it is shown this way

Stacked bars show each dimension's 28 states split three ways; every bar totals 28, so the split is directly comparable across dimensions.
Vertical bars are used because the chart subset requires a numeric Y axis.

Data and accessibility

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Dataset us-state-girls-sports-laws, analysis strictness-vs-i638

Sources

This chart draws on the sources of the dataset versions it visualizes.

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

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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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

Dimensions are unweighted; the chart does not say which dimension matters most.
Coded from statute and regulation text only; athletic-association rules and enforcement practice are not shown.
'Stricter' means reaching more students or schools, demanding more, or enforcing harder; it is not a judgment of merit.

Articles and datasets using this chart

Version details

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

Article wa-i638-most-extreme — version 4 (published) cites version 1
Briefing wa-i-638 — version 5 (published) cites version 1
Briefing wa-i-638 — version 4 (published) cites version 1