In an unexpected and controversial decision, the Commonwealth Court has held that the filing of a Modification Petition, based upon evidence of an impairment rating of less than fifty percent is not the “traditional administrative process” contemplated by the Supreme Court in Gardner for modifying a claimant’s benefits based upon an untimely IRE. Instead, the Commonwealth Court held that an employer seeking to modify benefits to partial disability status must prove work availability either through a Labor Market Survey or through traditional job development as set forth by the Supreme Court in Kachinski.