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Initiative Measure IL26-638: Participation in Athletics at K-12 Schools

Statewide — all of Washington

General election · Tuesday, November 3, 2026

  • Citizen initiative to the Legislature brought by the political committee Let's Go Washington, which turned in signatures on January 2, 2026; the group said it had collected 445,187. The Legislature did not act on it, so it was placed on the November 3, 2026 ballot; the Secretary of State certified it on August 21, 2026.[2][3][4]

The question on the ballot

Initiative Measure No. IL26-638 concerns participation in athletics at K-12 schools. This measure would prohibit students it defines as “biologically male” from competing in certain school athletic activities intended for female students only. It would require verification of biological sex by students’ healthcare providers. Should this measure be enacted into law? Yes / No[1]

Per the Attorney General's explanatory statement, the measure would prohibit “biologically male students from competing with and against female students” on sports teams or in individual events designated for female students only, which would generally prevent transgender girls from participating on girls' teams. It would apply to public K-12 schools and to private schools that participate in the WIAA or similar nonprofit organizations. Students wishing to take part in female-only interschool sports would have to provide a form signed by their personal health care provider verifying “biological sex” based on reproductive anatomy, genetic makeup, or normal endogenously produced testosterone levels. The Office of Financial Management estimates a one-time cost of about $21,000 to the Superintendent of Public Instruction to update guidance, and indeterminate costs to school districts; no effect on state or local revenue.[1]

A YES vote means

Prohibits students defined as “biologically male” from competing in school athletic teams or events designated for female students only, and requires a health-care-provider-signed verification of biological sex to participate in those sports.

A NO vote means

Leaves current law in place: schools may offer sex-separated teams, and OSPI regulations prohibiting discrimination based on sex and gender identity continue to apply.

The law today

Attorney General's explanatory statement: school districts may offer extracurricular sports, which must be offered to all public school students without regard to sex, though public schools may provide separate teams based on sex. The Office of the Superintendent of Public Instruction's regulations and guidelines prohibit discrimination in sports based on sex and gender identity. School districts may delegate regulation of interschool athletics to a nonprofit such as the WIAA, which may not discriminate on the basis of sex and must have written rules on student participation.[1]

Official fiscal estimate

Office of Financial Management fiscal impact statement: no effect on state or local revenue; the Office of the Superintendent of Public Instruction would incur a one-time cost of approximately $21,000 to update guidelines, and local school districts would likely incur indeterminate costs to revise policies and procedures.[1]

Read the full text of the measure ↗

Arguments made for

  • Argument for (written by parent and education advocate Alesha Perkins, a high school coach, an Olympic medalist, a pediatrician and others): “Female athletes deserve fair opportunities to build confidence, develop skills, and pursue goals. Let’s protect those opportunities and affirm the hard-fought rights established through Title IX in 1972, which expanded athletic access for women by recognizing the necessity of the female category.”[1]
  • Argument for: “Students would compete in the category that aligns with their sex, verified during routine, medically necessary primary care recommended by the American Academy of Pediatrics. During a private, consented visit, a licensed medical professional would verify sex based on the student’s birth records, medical history and/or a standard, non-invasive physical examination.”[1]
  • Rebuttal of the argument against (same authors): “IL26-638 doesn’t require invasive or expensive exams. Standard primary pediatric care already verifies sex; transferring that record to sports is sufficient.”[1]

Arguments made against

  • Argument against (written by the Washington State Nurses Association president, Planned Parenthood Alliance Advocates, the League of Women Voters of Washington, a family physician, a retired school nurse and a girls' wrestling coach): this “poorly written measure would require girls as young as 8 to undergo intrusive medical sex certification as a new part of sports physicals. It bans parents from using birth certificates.”[1]
  • Argument against: “The WA State Nurses Association, Planned Parenthood Alliance Advocates, and doctors warn this measure would subject girls to medically unnecessary, embarrassing, and potentially harmful genital exams.”[1]
  • Argument against: “This statewide blanket ban to kick 5 - 10 trans girls off school teams will negatively impact all girls, leaving no room for case by case decisions.”[1]

On record in support

  • Let's Go Washington (political committee led by Brian Heywood), the initiative's sponsor, which is registered in favor with the Public Disclosure Commission.[3][5]
  • Authors of the voters' pamphlet statement for: Alesha Perkins, Dori Whitford (high school coach), Carol Brown (Olympic bronze medalist), Erica Li, MD, Ahnaleigh Wilson (student athlete) and Jess Grant (Democrats for an Informed Approach to Gender).[1]
  • 47th District Republicans (registered in favor with the Public Disclosure Commission).[5]

On record in opposition

  • No Hate in WA State (political committee registered against; contact listed on the pamphlet statement against).[1][5]
  • Authors of the voters' pamphlet statement against: Washington State Nurses Association, Planned Parenthood Alliance Advocates, League of Women Voters of Washington, a family physician, a retired school nurse and a girls' wrestling coach.[1]
  • Defend Washington (political committee registered against with the Public Disclosure Commission).[5]

Campaign money

Per the Public Disclosure Commission's committee summary data (records updated Oct. 13-18, 2026; amounts are each committee's cumulative totals across all the measures it is registered on, not split by measure): Let's Go Washington (Sponsored by Brian Heywood), registered in favor of IL26-001, IL26-638 and a third initiative, reported $3,936,674.72 in contributions and $3,918,275.65 in expenditures. No Hate in WA State, registered against IL26-001 and IL26-638, reported $3,276,741.81 in contributions and $2,049,008.78 in expenditures. Defend Washington, registered against IL26-001, IL26-638 and a third initiative, reported $352,407.33 in contributions and $337,625.99 in expenditures. Other smaller committees are also registered on both sides.[5]

Research notes & limits

The official voters' pamphlet does not publish a 'a yes vote means / a no vote means' statement for this measure; the yesMeans/noMeans text is derived strictly from the Attorney General's explanatory statement. The pamphlet's for/against statements are written by committees appointed under state law; the Secretary of State states it 'is not responsible for the content of statements or arguments' (WAC 434-381-180). Arguments are quoted from the Whatcom County edition of the voters' pamphlet; the statewide-measure pages (9-22) were compared with the Spokane County edition and are identical, and the Secretary of State publishes no separate English statewide edition. The proponents and opponents disagree about what the verification would involve: the measure's text, as summarized by the Attorney General, allows verification based on reproductive anatomy, genetic makeup, or testosterone levels. The 445,187 signature figure is the sponsor's own claim as reported by the Washington State Standard; the Secretary of State's certification notice is the authoritative source for ballot status.

Sources · 5

Researched 2026-10-19. Green citations are official government records.