Whether a court or an arbitrator must decide in the first instance whether a collective-bargaining agreement requires arbitration of a particular grievance.
Holding
A court must decide arbitrability unless the parties clearly and unmistakably agreed to submit that question to arbitration.
Reasoning
Arbitration is a matter of contract. Because an arbitrator's authority exists only by virtue of the parties' agreement, no party may be compelled to arbitrate a dispute that it did not agree to arbitrate.
The Steelworkers Trilogy establishes that whether a collective-bargaining agreement creates a duty to arbitrate a particular grievance is a judicial question. John Wiley & Sons reaffirmed that compulsory arbitration cannot come before a court determines that the contract actually imposes a duty to arbitrate.
The Seventh Circuit therefore erred by directing the arbitrator to decide arbitrability merely because resolving that question required examining Articles 8, 9, and 20. The potential need to interpret contractual language does not transfer the threshold consent-to-arbitrate question from the court to the arbitrator.