Indiana Code Title 20. Education § 20-29-7-2

(1) Interfere with, restrain, or coerce:

This subdivision does not impair the right of a school employee organization to adopt its own rules with respect to the acquisition or retention of membership in the school employee organization.

(2) Cause or attempt to cause a school employer to discriminate against an employee in violation of section 1 of this chapter.

(3) Refuse to bargain collectively with a school employer if the school employee organization is the exclusive representative.

(4) Fail or refuse to comply with any provision of this article.