The big picture: The National Labor Relations Board (NLRB) has signaled a return to the General Motors standard for evaluating employee misconduct during protected union or concerted activities, following a Fifth Circuit ruling.

Why it matters: This decision clarifies the legal framework employers must navigate when disciplining employees involved in union activities, impacting HR compliance and labor relations strategies.

Between the lines:

• The NLRB's latest decision in Lion Elastomers LLC mandates the application of the General Motors LLC standard.
• This standard utilizes the Wright Line burden-shifting framework, requiring the General Counsel to prove protected activity was a motivating factor, then allowing employers to show they would have taken the same action regardless.
• The Fifth Circuit vacated an earlier NLRB attempt to overrule General Motors, directing its application.

Staffing & HR impact: Employers must meticulously document legitimate, non-discriminatory reasons for discipline and consistently enforce workplace rules to defend against unfair labor practice charges. This impacts regulatory compliance and risk management for staffing and HR leaders.

The bottom line: The General Motors/Wright Line framework is now the controlling precedent for employee misconduct cases during protected activity, demanding careful employer adherence.