Minn. Stat. § 181.985
Subd. 1. Definition.
For the purposes of this section, "communication" means any printed or electronic document, letter, brochure, flyer, advertisement, e-mail, text message, or similar means pertaining to union business or labor organizing as provided under state law.
Subd. 2. Collective bargaining agreements.
Chapter 179A shall not prohibit a collective bargaining agreement from including provisions related to workplace communications.