The NLRB has restored the employer-friendly General Motors test for offensive conduct during union and other protected activity. The decisive question is now motive: was the worker punished for the misconduct—or for the protected activity around it?
Bottom line
Profanity, racist slurs, insults, or threats do not gain broad “heat of the moment” protection merely because they occur during Section 7 activity. An employer may discipline the conduct if it can prove it would impose the same discipline outside the protected context.
The Board says General Motors never stopped governing
In Lion Elastomers LLC—the third Board decision in a dispute that began with a union representative’s heated 2017 exchange with managers—the majority did not frame its ruling as a new policy choice. It said the 2023 Biden-era precedent had been wiped away by a federal appeals court’s vacatur.
- Case
- Lion Elastomers LLC, 375 NLRB No. 41
- Docket
- 16-CA-190681
- Decision
- September 23, 2026
- Vote
- 3–1; Chair James Murphy in the majority, David Prouty dissenting
- Rule restored
- General Motors LLC, 369 NLRB No. 127 (2020)
The majority said Lion Elastomers II, the 2023 ruling that displaced General Motors, “did not survive judicial vacatur.” The older rule therefore “constitutes extant Board precedent.” Reporting identified Chair James Murphy and newly seated member James R. Macy among the Republican majority; the available sources did not name the other Republican member.
“We find it impossible to reconcile the court’s finding … with any argument that General Motors remains overruled.”
The majority preserved a narrow distinction: the Board’s long-running policy of not automatically following adverse circuit-court rulings—known as non-acquiescence—still exists, it said. But the Fifth Circuit had not rejected the Board’s interpretation of labor law on the merits. It found the Board lacked authority to use this particular remand to overturn General Motors. Recognizing that procedural ruling, the majority argued, is not acquiescing to a court’s interpretation of the National Labor Relations Act.
Murphy’s concurrence underscored the maneuver: the ruling “should not be considered as three members affirmatively voting to overrule precedent.” Doing that on this remand, he wrote, would repeat the same error the Fifth Circuit had identified.
The rule is a two-step motive test
General Motors imports the Wright Line mixed-motive framework used in discriminatory discharge cases. It treats protected activity and misconduct as analytically separate.
The General Counsel makes the first showing
Evidence must show that the worker engaged in Section 7-protected activity; the employer knew about it; and that activity was a substantial or motivating factor in the discipline. Put plainly: was anti-union or anti-protected-activity animus part of the decision?
The employer gets the same-action defense
The employer must prove it would have imposed the same discipline even if the worker had not engaged in protected activity. Would someone using the same language in an ordinary, non-protected setting have been treated the same way?
That defense can fail if the stated reason is pretextual. Selective enforcement, inconsistent treatment of similar conduct, or disciplinary language aimed at the union activity rather than the misconduct can support a finding that the employer violated the Act.
One motive test replaces three context tests
The Biden-era Lion Elastomers II standard asked whether an outburst was so egregious that it lost protection in its setting. Its rationale was that labor disputes are predictably emotional, and Section 7 rights would be weakened if employers could punish the “ordinary impulsive conduct” that often accompanies protected activity.
Context first
Ask whether the conduct crossed the line under a test tailored to the setting. This gave workers broader latitude for heated or offensive expression tied to protected activity.
Motive first
Ask whether protected activity motivated the discipline and whether the employer would have imposed the same penalty for the conduct alone. One framework applies everywhere.
The three standards displaced again
- Atlantic Steel: confrontations with management were weighed by place, subject matter, nature of the outburst, and employer provocation.
- Totality of the circumstances: social-media posts and conversations among coworkers were judged in context.
- Clear Pine Mouldings: a separate standard governed picket-line conduct.
The restored rule applies across the workplace, social media, and the picket line. Its practical appeal to employers is consistency: ordinary civility and anti-harassment policies can operate during protected activity too, provided enforcement is genuinely neutral
A procedural ruling drove the switch
The Fifth Circuit did not decide which speech-protection standard is the better reading of labor law. It decided that the Board used the remand improperly.
General Motors
The Board adopts the uniform Wright Line motive test for abusive-conduct cases.
Lion Elastomers II
A Biden-era Board restores the setting-specific standards while handling a remand that had been sent back for application of General Motors.
Fifth Circuit vacatur
The court calls the Board’s approach a “bait-and-switch”: it had been told to apply General Motors, but instead overruled it without giving Lion Elastomers a chance to brief that issue. The court finds an overstep of the remand and a due-process violation, without reaching the merits of the labor-law standard.
Lion Elastomers III
The new Board majority recognizes the legal effect of the vacatur and declares General Motors the existing precedent again.
Prouty: this is acquiescence by another name
Member David Prouty argued that the majority’s move is “flatly inconsistent” with non-acquiescence. In his view, court decisions vacating Board precedents have not historically stripped those precedents of force in future cases.
His core objection: the majority was choosing to follow one circuit court’s decision while avoiding the reasoned policy analysis ordinarily required before the agency changes its legal rule.
He warned that the position “swallows non-acquiescence whole [and] permits a single court decision to undo years of administrative work.”
Prouty described the ruling as “a choice to acquiesce to the court’s decision—but one made without the work necessary to justify a retreat from Lion Elastomers II back to General Motors.”
What this means
Protected activity does not become unprotected simply because offensive conduct occurs alongside it. But the offensive conduct no longer receives broad contextual leeway merely because it happened during a grievance, organizing drive, strike, or protected post.
Neutral rule, consistent discipline
The employer identifies the misconduct, shows the same rule is enforced outside union activity, and proves the same penalty would have followed without the protected conduct.
Misconduct reason is pretext
The General Counsel shows protected activity motivated the decision, while comparison cases, selective enforcement, or the employer’s own wording undercut the claimed misconduct rationale.
For workers
Do not assume a heated union setting immunizes profanity, slurs, insults, or threats. The surrounding protected activity still matters—but mainly as evidence of motive. A paper trail showing selective treatment or hostility toward organizing can be decisive.
For employers
The safer course is to document the exact conduct, identify the neutral rule violated, compare similar cases, and keep the explanation focused on misconduct rather than the grievance, strike, organizing, or concerted complaint. The rule reduces—but does not eliminate—the tension between NLRA protection and anti-harassment obligations.
The doctrine may move again
The majority left the door open
Because the ruling rests on the legal effect of the Fifth Circuit’s vacatur—not a fresh policy judgment—the majority expressly said a future case could present and litigate whether General Motors should be overruled. A later Board, particularly one with a different composition, could revisit the standard.
Verification gap: the NLRB docket confirms a Board Decision dated September 23, 2026, but the decision PDF was not retrievable through the research tools. Quotations from the ruling here are therefore drawn from Reuters, Bloomberg Law, and multiple law-firm analyses that agree on the holding. The sources reviewed also did not name the third Republican member of the majority.
Sources
Primary docket plus news and legal analysis used to corroborate the holding, history, and practical effects.
- Reuters — “NLRB revives test limiting protections for workers’ profane, racist outbursts”
- Bloomberg Law — “Labor Board Dumps Biden-Era Framework for Offensive Conduct”
- Vinson & Elkins — “The NLRB Pendulum Swing Begins”
- Holland & Knight via Mondaq — “Workplace Civility”
- Ogletree Deakins — “NLRB Restores Employer-Friendly Test”
- Taft Law — “The NLRB Goes On A Lion Hunt”
- Benesch — “Back To Wright Line”
- OnLabor — News & Commentary, September 24, 2026
- Mondaq — “Flip-Flop: NLRB Reverses Course (Again)”
- Baker Donelson via JD Supra — “Change is Here”
- NLRB case docket — 16-CA-190681
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