Section 205 Co-Employee Immunity Turns on “Scope of Employment” Under the Workers’ Compensation Act

1. Introduction

Brown, J. v. Gaydos, G. arises from a workplace injury suffered by John Brown, who received workers’ compensation benefits from his employer, American Concrete Solutions, Inc. (ACS). Brown also pursued a civil action against George Gaydos (identified as an individual, t/d/b/a Gaydos Construction), alleging Gaydos’s acts or omissions caused or contributed to the injury.

The core legal issue addressed in Justice Brobson’s concurring and dissenting opinion is the boundary between: (a) the Workers’ Compensation Act’s exclusive-remedy structure, including employer vicarious liability and co-employee immunity, and (b) a worker’s ability to sue an individual in tort as a third party. Specifically: whether Gaydos’s alleged conduct occurred while he was acting within the scope of his employment with ACS, such that ACS is vicariously liable under the Act and Gaydos is protected by Section 205 co-employee immunity.

2. Summary of the Opinion

Justice Brobson agrees with the Majority that the record presents genuine issues of material fact on whether Gaydos was “in the same employ” as Brown when the relevant acts or omissions occurred—making summary resolution improper. However, he parts ways with the Majority’s framing to the extent it would require a “course and scope” inquiry. In his view, because the Act’s vicarious-liability provision (Section 202) is keyed to scope of employment, the dispositive factual/legal inquiry for co-employee immunity under Section 205 should likewise focus on whether Gaydos was acting within the scope of employment at the pertinent time.

3. Analysis

3.1. Precedents Cited

• Herold v. Univ. of Pittsburgh, 329 A.3d 1159 (Pa. 2025)
  Justice Brobson uses Herold to situate the dispute within the Act’s foundational policy compromise—the “mutual dissatisfaction with the common law negligence system” and the resulting “Grand Bargain.” The citation supports the opinion’s emphasis on the Act’s exclusive-remedy design: employees receive no-fault benefits; employers receive insulation from tort liability for compensable injuries.
• Scampone v. Highland Park Care Ctr., LLC, 57 A.3d 582 (Pa. 2012)
  Scampone is invoked for the general common-law principle that an employer may be vicariously liable for acts of employees within the course and scope of employment. Justice Brobson uses it as a bridge between common-law vicarious liability and the Act’s express codification of employer responsibility in Section 202.
• McGuire ex rel. Neidig v. City of Pittsburgh, 285 A.3d 887 (Pa. 2022)
  This case supplies the operative framework for defining “scope of employment” where the Act itself does not define the phrase. Adopting the Restatement (Second) of Agency, Neidig provides the multi-factor test Justice Brobson would apply to decide whether Gaydos’s conduct falls within scope—an inquiry that, for him, controls whether Section 202 vicarious liability and Section 205 co-employee immunity attach.
• Apple v. Reichert, 278 A.2d 482 (Pa. 1971)
  Justice Brobson treats Apple as “instructive but not dispositive.” He distinguishes it on the ground that the facts there were “so undisputed” that the Court could readily conclude the parties were in the same employ at the time of the accident; by contrast, the present case turns on fact disputes requiring a closer scope-of-employment analysis. He also notes Apple suggested that even under a scope inquiry, the employee there was not outside scope.

3.2. Legal Reasoning

Justice Brobson’s reasoning is built around how several Workers’ Compensation Act provisions operate as an integrated system:

1. Section 301(a) imposes no-fault liability on the employer to pay benefits for injuries in the course of employment.
2. Section 303 makes that statutory liability exclusive—the employee generally cannot sue the employer in tort.
3. Section 202 codifies employer responsibility for employee negligence within scope of employment, making the employer the party that bears the cost of workplace negligence (as part of the statutory tradeoff).
4. Section 205 then protects the negligent co-employee from common-law liability for acts or omissions occurring while “in the same employ,” except for “intentional wrong,” thereby preventing an end-run around exclusivity by suing coworkers for ordinary negligence.
5. Section 319 preserves third-party actions; if the tortfeasor is truly a “third party,” the employee may sue, but the employer has a subrogation right (lien) to recoup benefits paid.

On these premises, Justice Brobson frames the dispositive inquiry this way: if Gaydos’s alleged acts or omissions occurred while he was acting within the scope of his employment with ACS, then (i) ACS is vicariously liable under Section 202 (satisfied through workers’ compensation payments), and (ii) Gaydos is immune under Section 205. If not, Gaydos is not treated as a protected co-employee for Section 205 purposes, and Brown may proceed in tort, subject to ACS’s Section 319 subrogation lien.

The opinion’s key methodological disagreement with the Majority is narrow but consequential: Justice Brobson would not add a “course and scope” requirement to the Section 205 analysis. He reads the statutory scheme to make scope of employment the relevant touchstone because Section 202’s vicarious-liability trigger is expressly “scope of employment,” and Section 205 functions as the companion shield that prevents duplicative recovery against the coworker for the same negligence the employer statutorily assumes.

3.3. Impact

If Justice Brobson’s approach is adopted or becomes influential, its practical effects would likely include:

• Tighter alignment between Sections 202 and 205: litigants and courts would analyze co-employee immunity through the same “scope” lens that drives employer vicarious liability under the Act.
• More fact-intensive immunity litigation: where employment relationships are contested (e.g., dual roles, side businesses, borrowed-servant scenarios, or mixed-purpose conduct), immunity may frequently turn on disputed facts applying the Restatement/Neidig factors—making summary judgment less likely.
• Clearer third-party boundary (and subrogation consequences): if the defendant is outside scope, the claim proceeds as a third-party case with a Section 319 lien; if inside scope, workers’ compensation is the exclusive remedy.

4. Complex Concepts Simplified

The “Grand Bargain”

Workers give up the right to sue employers for ordinary workplace negligence; employers provide no-fault benefits. The Act’s exclusivity rules are designed to preserve that tradeoff.

Exclusive remedy (Section 303)

If the injury is compensable under the Act, the employee typically cannot sue the employer in tort for the same injury.

Vicarious liability (Section 202)

The employer is legally responsible for employee negligence committed within the employee’s scope of employment, but that responsibility is handled inside the workers’ compensation system rather than through tort damages.

Co-employee immunity (Section 205)

A coworker generally cannot be sued for negligence causing a compensable injury if the act or omission occurred while both were in the same employ—unless the conduct was an “intentional wrong.”

Scope of employment (Neidig / Restatement factors)

Conduct is within scope if it is the kind the employee is employed to perform, occurs within authorized time/space limits, is motivated at least partly to serve the employer, and (where force is used) is not unexpected. Conduct is outside scope if it is different in kind, far beyond authorized limits, or too little motivated by serving the employer.

Subrogation lien (Section 319)

If the employee recovers from a true third party, the employer can recoup (from that recovery) the workers’ compensation benefits it paid.

5. Conclusion

Justice Brobson’s opinion reinforces the Act’s integrated structure: employer-paid compensation is meant to be the single, exclusive recovery for workplace injuries attributable to workplace negligence within employment scope, while Section 205 prevents negligence suits against coworkers that would undermine that exclusivity. The opinion’s principal contribution is its insistence that the immunity question should turn on a scope-of-employment analysis (as informed by McGuire ex rel. Neidig v. City of Pittsburgh), rather than a broader “course and scope” formulation. In cases with disputed facts about an individual’s employment role at the time of the alleged negligence, the scope inquiry becomes the critical gateway for determining whether the defendant is a protected co-employee or a suable third party.