OPINION OF THE COURT
The issue on appeal is whether a workers’ compensation claimant who suffers a compensable injury before the effective date of the amendment to Section 306(a)(2) of the Workers’ Compensation Act, 1 but who is incarcerated for a criminal conviction after the effective date of that amendment, is entitled to compensation benefits during his pеriod of incarceration. Because we find that a claimant cannot receive benefits during his period of incarceration, we affirm the order of the Commonwealth Court suspending appellant’s benefits for the time he spent incarcerated for his federal criminal conviction.
The relevant facts concerning this appeal are not in dispute. On April 6,1992, appellant injured his lower back while in the course of his employment with Trans-Bridge Lines, Inc. (“Employer”). As a result of this injury, appellant began receiving weekly workers’ compensation benefits in the amount of $326.55 pursuant to a Notice of Compensation payable dated April 27,1992.
On July 12, 1993, appellant pled guilty in the United States District Court for the Eastern District of North Carolina to four counts of the federal offense of “transfer of any firearm knowing that such firearm will be used to commit a crime of violence.” 2 Following the acceptance of appellant’s guilty plea, the federal district court sentenced appellant to twenty-seven (27) months imprisonment and ordered appellant to begin serving his sentence on September 1,1993.
Nothing in this act shall require payment of compensation for any period during which the employe is incarcerated after a conviction.
77 P.S. § 511(2). When the 1993 amendments to the Act were enacted, the General Assembly provided that: “[n]о changes in indemnity compensation payable by this act shall affect payments of indemnity compensation for injuries sustained prior to the effective date of this section.” 4
On September 1, 1993, one day after the amendment to Section 306(a)(2) of the Act became effective, appellant reported to federal prison. On that same date, Employer сeased paying workers’ compensation benefits to appellant because of the amendment to Section 306(a)(2) of the Act. On October 6, 1993, Employer filed a formal petition to suspend appellant’s workers’ compensation benefits because of appellant’s incarceration. On November 12, 1993, appellant filed a penalty petition against Employer alleging that Employer violated the Workers’ Compensation Act by unilaterally suspending payment of his benefits without a valid administrative or court order.
On March 18, 1994, the Workers’ Compensation Judge (“WCJ”), after conducting hearings, dismissed Employer’s suspension petition because it found that the amendment to Section 306(a)(2) of the Act was substantive in nature and that Employer errеd by applying this amended provision retroactively to appellant. The WCJ, however, denied appellant’s penalty petition because he found that Employer made a good faith challenge in seeking to suspend appellant’s benefits since the General Assembly was less than clear on how the amendment to Section 306(a)(2) of the Act was to be apрlied to a situation like that faced by appellant.
Appellant then filed a timely appeal to the Commonwealth Court. The Commonwealth Court, in a two-to-one decision, affirmed the Board’s order suspending appellant’s benefits and denying appellant’s penalty petition. In arriving at this decision, the Commonwealth Court majority reasoned that the date crucial to determining the applicability of the amendment to Section 306(a)(2) of the Act for payment of benefits to incarcerated claimants was the date a person began serving his prison sentence rather than the date when he began receiving benefits. Accordingly, the Commonwealth Court held that the amendment to Section 306(a)(2) of the Act applied to any claimant who was incarcerated on or аfter August 31, 1993. The dissenting member of the Commonwealth Court panel disagreed with the majority because he believed that the date of incarceration was irrelevant. Instead, since the amendment to Section 306(a)(2) of the Act expressly applied only to injuries which occurred on or after August 31, 1993, the dissent believed the date when the work-related injury occurred was the dispositivе fact. Since appellant’s injuries occurred before the effective date of the amend
We granted
allocatur
in order to determine whether a workers’ compensation claimant who suffers his compensable injury before the effеctive date of the amendment to Section 306(a)(2) of the Act, but who is incarcerated for a criminal conviction after the effective date of that amendment, is entitled to compensation benefits during his period of incarceration.
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Appellate review of a workmen’s compensation order is limited to determining whether the lower tribunals committed a constitutional violation or an error of law and whether substantial evidence supports the necessary findings of fact.
Pieper v. Ametek-Thermox Instruments Div.,
Appellant contends that he is entitled to receive compensation benefits because the Board’s and Commonwealth Court’s determination that the amendment to Section 306(a)(2) of the Act bars his receipt of benefits constitutes an impermissible retroactive application of a substantive change in the law adversely affecting his compensation benefits to which he was entitled before the amendment. Because we find that the state of the law as it existed before the enactment of the amendment to Section 306(a)(2) of the Act prevented appellant from receiving payment of benefits beсause of his incarceration, we affirm the Commonwealth Court, albeit on different grounds.
See Gilbert v. Korvette,
Under Pennsylvania law, disability has long been synonymous with the loss of earning power.
Kachinski v. Workmen’s Compensatiоn Appeal Board (Vepco Construction Co.),
The fact that a claimant can meet his burden of proof and begin receiving benefits does not mandate that thе claimant receive benefits indefinitely. Rather, in recognition that a claimant’s disability can change over time, the Act allows for the modification, reinstatement, suspension and termination of a claimant’s benefits based upon the degree of change in a claimant’s disability (his loss of earning power). Specifically, Section 418 of the Workers’ Compensation Act provides that:
A referee designated by the department may, at any time, modify, reinstate, suspend, or terminate a notice of compensation payable, an original or supplemental agreement or an award of the department or its referee, upon petition filed by either party with the department, upon proof that the disability of an injured employеe has increased, decreased, recurred, or has temporarily or finally ceased, or that the status of the dependent has changed. Such modification, reinstatement, suspension, or termination shall be made as of the date upon which it is shown that the disability of the injured employe has increased, decreased, recurred, or has temporarily or finally cеased, or upon which it is shown that the status of any dependent has changed ... And provided further, That where compensation has been suspended because the employe’s earnings are equal to or in excess of his wages prior to the injury that payments under the agreement or award may be resumed at any time during the period for which compensation for partiаl disability is payable, unless it be shown that the loss in earnings does not result from the disability due to injury.
77 P.S. § 772.
See also Dillon v. Workmen’s Compensation Appeal Board (Greenwich Collieries);
The seminal case dealing with the proof requirements for a party seeking to suspend, terminate or modify benefits was set forth by this Court in Kachinski, supra. Kachinski’s four prong test requires that:
(1) The employer who seeks to modify a claimant’s benefits on the basis that he has recovered some or all his ability must produce medical evidence of a change in condition.
(2) The employer must then produce evidence of a referral (or referrals) to a then open job (or jobs), which fits in the occupational category for which the claimant has been given medical clearance.
(3) The claimant must then demonstrate that he has in good faith followed through on the job referral(s).
(4) If the referral fails to result in a job the сlaimant’s benefits should continue.
Kachinski,
However, history has shown that the four prong analysis of
Kachinski
is not to be rigidly applied to situations in which an employer seeks to suspend or terminate a claimant’s benefits because the claimant’s loss of earning power is no longer caused by the work-related injury but rather by something unrelated to the work related injury. As this Court noted in
In sum, these decisions make it clear that a party does not have to prove every prong of Kachinski where the facts demonstrate that the changed circumstancеs of a claimant’s disability would make the showing of all four Kachinski factors irrelevant and fruitless. To hold otherwise would result in courts promoting form over substance.
Therefore, because “[benefits under the Act will only be permitted where the disability, work rеlated injury or disease results in a loss of earning power,”
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it is clear that workers’ compensation benefits can be suspended under the
Applying the above to this case, appellant was incarcerated on September 1, 1993. Thus, the Act, even as it existed prior to the аmendment to Section 306(a)(2) of the Act, mandated that appellant’s benefits be suspended during his incarceration since it was appellant’s own conduct, rather than his work-related injury, which caused his loss of earning power. 8 Accordingly, we affirm the Commonwealth Court’s suspension of appellant’s benefits for the time appellant was incarcerated because of his 1993 federal conviction.
Notes
. 77 P.S. § 511(2).
. 18 U.S.C. § 924(h).
. Act of July 2, 1993, P.L. 190, No. 44 (commonly referred to as Act 44).
. Section 26 of Act 44.
. The Commonwealth Court’s affirmance of the Board’s denial of appellant’s penalty petition is not before this Court.
. We note that case law on the effect incarceration had on the suspension or receipt of benefits before the amendment to Section 306(a)(2) lay solely within the Commonwealth Court. In those cases, the employer presented evidence that available jobs were referred to the claimant, thereby, relieving the Commonwealth Court from examining the issue of whether incarceration alone was sufficient to terminate or suspend benefits under the tеrms of the Workers’ Compensation Act.
See Brown v. Workmen’s Compensation Appeal Board (City of Pittsburgh),
.
Republic Steel,
. While not part of the record, appellee notes in its brief to this Court that appellant's workers’ compensation benefits were reinstated upon his release from prison on July 14, 1995 without appellant filing a petition for reinstatement. Thus, the issue of whether a claimant's release from prison automatically entitles the claimant to a reinstatement of benefits is left for another day.
