Voluntary arbitration allows employers and workers to submit industrial disputes to appointed arbitrators with prescribed representation rules. Employers and workers may refer industrial disputes to arbitration by written agreement naming arbitrator(s); even-numbered panels must provide for an umpire whose decision prevails. Agreements must follow prescribed form, be sent to the appropriate Government and conciliation officer, and where the Government is satisfied of majority representation it may notify the reference and require opportunity for non-parties to present. Representation rules differ for collective disputes and individual termination disputes. Arbitrators must investigate and submit a signed award to the appropriate Government, which may prohibit related strikes or lock-outs; general arbitration law does not apply.