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ARTICLE · 23 OCTOBER 2026

Employee Misconduct: Burden-Shifting Returns With NLRB’s Latest Lion Elastomers

Jackson Lewis P.C.
Jackson Lewis P.C.
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Jackson Lewis P.C.

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The National Labor Relations Board has reinstated the burden-shifting standard from General Motors LLC for evaluating whether employees lose NLRA protection when engaging in misconduct during protected activities. This decision reverses the 2023 Lion Elastomers II ruling and restores a framework that allows employers to discipline abusive conduct while navigating the tension between labor law protections and anti-discrimination obligations.

United StatesEmployment and HR

Takeaways

  • The National Labor Relations Board has returned to the burden-shifting standard for determining whether employees lose National Labor Relations Act protection for misconduct during Section 7 protected activity.
  • Under the restored test, the Board general counsel must prove, by a preponderance of evidence, that employees engaged in union or protected concerted activity, the employer knew of that activity, and antiunion animus was a motivating factor in the adverse action. 
  • If the general counsel satisfies the initial burden, the employer must prove that it would have taken the same disciplinary action absent the employee’s protect activity.
  • Employers’ consistent policy enforcement and thorough documentation continue to be important in defending employee disciplinary decisions.

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