25 C.F.R. § 30.108
(a) Alternate assessments aligned with alternate academic achievement standards. The BIE will provide for alternate assessments aligned with the challenging academic content standards for the grade in which the student is enrolled and alternate academic achievement standards described in § 30.104(d) and (e) for students with the most significant cognitive disabilities. The BIE must:
(2) With regard to the percentage of students assessed under this paragraph (a):
(3) With regard to IEP teams:
(i) Establish clear and appropriate guidelines, consistent with section 612(a)(16)(C) of the IDEA, and provide technical assistance as requested in writing, and monitor implementation of clear and appropriate guidelines for IEP teams to apply in determining, on a case-by-case basis, which students with the most significant cognitive disabilities will be assessed based on alternate academic achievement standards. Such guidelines must include a BIE definition of “students with the most significant cognitive disabilities” that addresses factors related to cognitive functioning and adaptive behavior, such that:
(4) Ensure that the parents of such students are clearly informed, as part of the process for developing the individualized education program (as defined in section 614(d)(1)(A) of the Individuals with Disabilities Education Act (20 U.S.C. 1414(d)(1)(A))):
(7) Describe that general and special education teachers, and other appropriate staff:
(8) Develop, disseminate information on, and promote the use of appropriate accommodations to increase the number of students with significant cognitive disabilities: