34 Pa. Code § 123.403 – Effect of creation, continuation and termination of ADR systems.

(a) Once established by a CBA, an ADR system shall be the exclusive system for resolving claims for work-related injuries during the existence of the CBA or longer, if the CBA provides for the continued operation of the ADR system at the expiration of the CBA.
(b) When an ADR system governing a work-related injury is no longer in effect, resolution of claims shall be fully subject to the act, including review by a workers’ compensation judge.