West Virginia v. B. P. J. · ¶101

In these cases, we need not definitively resolve whether rational basis review or intermediate scrutiny applies to transgender classifications. In either event, the classification here readily satisfies rational basis review or intermediate scrutiny for the reasons already explained at some length above. The States’ interests in ensuring safety and competitive fairness amply justify the States in maintaining women’s and girls’ sports for biological females. Under the Equal Protection Clause, therefore, schools may determine eligibility for women’s and girls’ sports based on biological sex.

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