MO SB1667

Requires public bodies and labor organizations to begin good faith bargaining within 30 days after a union is designated as exclusive bargaining representative, covering wages, benefits, and employment terms

Establishes a mediation process if no agreement is reached within 180 days, with parties selecting a neutral mediator from U.S. District Court panels or having the state board assign one

Creates binding interest arbitration when mediation fails after 90 days or when either party declares an impasse, with arbitrator selection through a panel of seven from the Federal Mediation and Conciliation Services or American Arbitration Association

Prohibits public bodies from making unilateral changes to wages, benefits, or employment conditions after a union is designated or after a contract expires, with violations allowing unions to seek court relief including monetary damages

Authorizes the state board to promulgate implementing rules, with any rules adopted after August 28, 2026, subject to chapter 536 administrative procedures