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Idaho · Policy & Funding

Idaho adopts temporary rule for resolving biological-sex disputes in school athletics after Supreme Court ruling

The Idaho State Board of Education approved a temporary rule establishing a formal process for schools to resolve disputes about a student's biological sex for athletic participation, effective immediately for the 2026-2027 school year.

The Idaho State Board of Education on August 12, 2026, approved a temporary rule that creates the state's first formal administrative process for resolving disputes about a student's biological sex for athletic participation. The rule, Docket 08-0601-2601, took effect immediately and is intended to provide guidance for the 2026-2027 school year following the U.S. Supreme Court's June 30 decision upholding the state's Fairness in Women's Sports Act.

The 2020 law had been under a federal injunction for six years before the Supreme Court reversed the Ninth Circuit and ruled that the law does not violate the Equal Protection Clause or Title IX. The temporary rule was adopted under a provision of Idaho law that allows an early effective date when a change in governing law requires prompt action.

The temporary rule

Under the rule, every Idaho school district and public institution of higher education must designate an administrator responsible for resolving disputes. That person's name and contact information must be published on the school's website. A single administrator may serve an entire district with multiple schools, and an alternate must be named in case of conflicts of interest or unavailability.

A dispute must be submitted in writing, either electronically or by certified mail, by a student who says they have been deprived of an athletic opportunity or by that student's parent or guardian. The submission must name the student whose biological sex is in question and identify the relevant athletic teams, along with a statement describing the factual basis for the dispute.

The administrator has five business days to conduct an initial review and issue applicable notices. If the submission lacks required information, it is declined and the filer may resubmit. If the school already holds sex-verification documentation from a health care provider, the administrator may decline further investigation.

5Business days for the designated administrator to conduct an initial review and issue applicable notices after receiving a dispute [1]

When a dispute proceeds, the administrator reviews documentation from the student's health care provider. The administrator may not request any documentation beyond what Idaho Code requires. Within five business days of receiving the documentation, the administrator must issue a written resolution to the student or their parent or guardian. The dispute initiator is then told the matter is closed.

The rule explicitly states that it does not establish or determine student athletic eligibility. That decision remains at the institutional level. State Board Executive Director Jennifer White said the rules are intended to ensure disputes are resolved promptly and that the Board sought to limit the rule's scope, mindful of the demands placed on students and administrators.

Records created under the rule must be kept confidential and maintained separately from general student educational records. The identity of the dispute initiator is limited to those needed to resolve the dispute, and the student's identity and documentation are restricted to those necessary for resolution and eligibility determination.

Written public comments on the proposed rule are due by October 28, 2026, and a permanent version is expected to come before the Board for consideration in November.

Comparative precedent

Idaho was the first state to pass a law restricting female sports teams to biological females, in 2020. By the time of the Supreme Court's ruling in June 2026, 27 states had enacted similar laws. West Virginia's Save Women's Sports Act, passed in 2021, was challenged in the same consolidated Supreme Court case and was also upheld.

Separately, the Idaho High School Activities Association voted 10-0, with one abstention, to update its Rule 11-3 to align with the Fairness in Women's Sports Act. That policy requires that sex disputes be resolved by the school through a health examination, a parallel approach to the State Board's administrative rule.

Medical and legal debate

The Supreme Court's majority opinion acknowledged that the underlying medical and scientific premise of the equal protection challenge — that at least some biological males who identify as female and take puberty blockers or hormones do not retain physical advantages over biological females — is the subject of ongoing debate. But the Court held that even if that premise were true, states are not required to conduct individual-by-individual comparisons of athletic capabilities.

The Idaho Fairness in Women's Sports Act itself includes a legislative finding that the benefit natural testosterone provides to male athletes is not diminished through the use of puberty blockers and cross-sex hormones. That finding was contested by plaintiffs in earlier litigation, but the Supreme Court declined to resolve the scientific debate, ruling that states do not need to make individualized exceptions regardless.

The dissenting justices, in an opinion by Justice Sotomayor joined by Justices Kagan and Jackson, wrote that the decision disadvantages transgender athletes and lacks adequate procedural safeguards. They also contended that the Court insufficiently examined the underlying medical evidence and that case-by-case evaluation of athletic capability should be required.

Analysis

By the School Decision Newsroom, written after the reporting above was filed.

Idaho's sex verification is medical, not a birth-certificate check. That makes the rule's shortcut uncertain.

Florida and Texas rely on birth certificates to establish biological sex for school sports. Idaho Code 33-6203 requires a health care provider to verify sex based on reproductive anatomy, genetic makeup, or normal endogenously produced testosterone levels. The temporary rule lets an administrator skip further investigation if the school already holds documentation "such as an athletic physical form" on file. But routine sports physicals typically cover height, weight, vision, and cardiovascular screening. They do not normally include genetic testing or a testosterone panel. Whether existing physical forms satisfy the statutory standard is a question no Idaho school has yet answered.

No Idaho school has ever run this process. West Virginia had three years of practice.

Idaho's Fairness in Women's Sports Act was under a federal injunction for its entire six-year existence. No school in the state has conducted a sex-verification dispute. West Virginia's comparable law, challenged in the same Supreme Court case, was enforced against all students except the named plaintiff after January 2023, when a district court dissolved the injunction and ruled the law constitutional. Idaho schools have no such runway. The temporary rule took effect August 12, 2026, the same month the Supreme Court lifted the injunction, and schools must implement a process they have never run.

The permanent rule is not locked in. Parents have three openings to shape it before 2027.

Written comments on the proposed rule are due by October 28, 2026. If 25 or more people, a political subdivision, or an agency requests a public hearing in writing by October 23, the Board must schedule one. The permanent rule goes before the Board for consideration in November. Under Idaho's rulemaking calendar, a pending rule submitted by early December goes to the 2027 Legislature for review, where lawmakers can approve, modify, or reject it. The temporary rule governs in the meantime, but every one of these dates is a chance to change what the final version looks like.

Sources

  1. Idaho State Board of Education (via Idaho Education News). Temporary Proposed Rule 08-0601-2601 Resolution of Athletic Participation Disputes — Board meeting materials View
  2. Idaho Education News. State Board roundup, 8.12.26: AI standards approved for K-12 schools View
  3. KIFI LocalNews8. Idaho High School Activities Board updates policy on transgender athletes View
  4. SCOTUSblog. Court rules that states can exclude transgender athletes from girls' and women's sports teams View
  5. U.S. Supreme Court. West Virginia v. B.P.J. / Little v. Hecox, 609 U.S. ___ (2026) — Slip Opinion View
  6. Alliance Defending Freedom. Idaho House Bill 500 (2020) — Fairness in Women's Sports Act, Idaho Code §33-6203 View
  7. Florida Senate. Florida Statutes 1006.205 — Athletic teams and sports designated by biological sex View
  8. West Virginia Attorney General. West Virginia v. B.P.J. — Case Timeline View
Idaho adopts temporary rule for resolving biological-sex disputes in school athletics after Supreme Court ruling | School Decision