Indiana Code Title 20. Education § 20-32-5-21

Sec. 21. (a) The state board may require schools to participate in national or international assessments.

(b) The state board may establish an assessment to be administered at the conclusion of each Core 40 course in English/language arts, mathematics, social studies, and science.  However, participation in a Core 40 assessment established under this subsection must be voluntary on the part of a school corporation.

(c) The state board may establish a diagnostic reading assessment for use in grades 1 and 2 to promote grade level reading competency by grade 3.  However, participation in a reading assessment established under this subsection must be voluntary on the part of a school corporation.

(d) The state board may establish assessments to supplement ISTEP assessments for secondary school students.