34 C.F.R. § 106.52
Link to an amendment published at 85 FR 30579, May 19, 2020.
A recipient shall not administer or operate any test or other criterion for any employment opportunity which has a disproportionately adverse effect on persons on the basis of sex unless:
(b) Alternative tests or criteria for such purpose, which do not have such disproportionately adverse effect, are shown to be unavailable.
(Authority: Secs. 901, 902, Education Amendments of 1972, 86 Stat. 373, 374; 20 U.S.C. 1681, 1682)