Following SEIU Local 121RN v. Los Robles Regional Medical Center (9th Cir. 2020) 976 F.3d 849, this decision holds that, at least with respect to delegation of arbitrability questions to the arbitrator, arbitration clauses in collective bargaining agreements are to be interpreted just like arbitration clauses in other types of contracts.  Arbitrability questions are determined by the court unless the arbitration clause clearly and unmistakably delegates them to the arbitrator.  Here, there was no clear delegation.  While the agreement defined “dispute” broadly, it did so only for purposes of the three-step grievance procedure which did not involve arbitration.  The arbitration clause was voluntary, not mandatory, and provided that the arbitrator would decide only those issues that the parties both agreed to have arbitrated.