(a) General rule.--An agreement to arbitrate a controversy on a nonjudicial basis shall be conclusively presumed to be an agreement to arbitrate pursuant to Subchapter B (relating to common law arbitration) unless the agreement to arbitrate is in writing and expressly provides for arbitration pursuant to this subchapter or any other similar statute, in which case the arbitration shall be governed by this subchapter.

(b) Collective bargaining agreements.--This subchapter shall apply to a collective bargaining agreement to arbitrate controversies between employers and employees or their respective representatives only where the arbitration pursuant to this subchapter is consistent with any statute regulating labor and management relations.

(c) Government contracts.--This subchapter shall apply to any written contract to which a government unit of this Commonwealth is a party to the same extent as if the government unit were a private person, except that where a contract to which the Commonwealth government is a party provides for arbitration of controversies but does not provide for arbitration pursuant to any specified statutory provision, the arbitration shall be governed by this subchapter.