34 C.F.R. § 668.148
(a) In addition to satisfying the criteria in § 668.146, to be approved by the Secretary, a test must meet the following criteria, if applicable:
(1) In the case of a test developed for a non-native speaker of English who is enrolled in a program that is taught in his or her native language, the test must be—
(v)
(2) In the case of a test that is modified for use for individuals with disabilities, the test publisher or State must—
(3) In the case of a computer-based test, the test publisher or State, as applicable, must—
(b) If a test is designed solely to measure the English language competence of non-native speakers of English—
(2) The test publisher must recommend a passing score based on the mean score of test takers beyond the age of compulsory school attendance who completed U.S. high school equivalency programs, formal training programs, or bilingual vocational programs.
Approved by the Office of Management and Budget under control number 1845-0049)
(Authority: 20 U.S.C. 1091(d))