Dress Codes and Message Shirts: A Defensible Enforcement Test

A message shirt is not automatically protected. Before you discipline, ask whether the conduct is protected concerted activity tied to employees' own terms and conditions. If it is not, a facially neutral dress code can generally be enforced without extra justification. If it is, the employer must show special circumstances.

The National Labor Relations Board, the federal agency that enforces workplace labor rules, ruled for Whole Foods over 2020 Black Lives Matter shirts, masks, and accessories. The board concluded the General Counsel had not shown the displays aimed to improve terms and conditions of employment. The panel found 2-1 that the former policy was not unlawfully broad.

First ask whether the message is about work

The difference is the link to work. In the Home Depot dispute, workers tied Black Lives Matter apron messages to reports of racial harassment by coworkers and customers. That connection made the display easier to treat as protected. The Whole Foods displays did not have that work-connection showing.

In the 2025 Home Depot appeal, the federal appeals court for the Eighth Circuit rejected the Board's analysis. It vacated the decision, assumed the display was protected, and found special circumstances. That means a protected message can still be restricted when the employer has a concrete operational reason.

Protected conduct changes what you must prove

When the conduct is protected, your job is not to win a slogan argument. Identify the operational problem that justifies enforcement. The special-circumstances question asks whether the employer has a concrete operational reason. The showing should be concrete, not a general preference for a quiet workplace.

Start with the facts, not the slogan. Interview the employee who wore the item, the supervisor who saw it, and any coworkers who were involved. Ask what the message is about, when it appeared, and whether it followed a workplace complaint. If several employees are involved, note that too, because concerted activity is easier to find when the conduct is shared.

Then separate the message from the disruption. A slogan may be protected, while a separate act, such as blocking a doorway or refusing a lawful instruction, may be addressed under a different policy. The discipline should track the conduct you can prove, not the words you dislike.

Special circumstances require a concrete reason for restricting protected conduct despite the Section 7 claim. Document the operational problem and tie it to the employee's actual conduct.

Do not let the slogan do the analysis. The question is whether the item is part of a shared effort to improve work conditions, not whether the message is political, social, or controversial.

Draft the rule so the words do not do the work

The drafting problem is precision. A rule that bans all symbols can swallow small accessories that a different rule might allow. The checklist below turns the legal test into a file you can defend, because the first item tests the conduct, the second tests your reason, and the third tests the policy text.

• Ask the work-connection question. If the message addresses wages, hours, safety, harassment, or other terms and conditions, treat the conduct as potentially protected and move to the special-circumstances step.
• Document the business reason before discipline. Write down the specific operational problem that supports special circumstances, such as safety, customer relations, brand, or disruption.
• Check the policy text. Make the rule facially neutral, preserve Section 7, and define the banned item precisely, because a broad ban on printed material can sweep in pins and buttons.

Apply the rule consistently

Consistency is the part that survives review. If you allow one employee to wear a slogan and discipline another for the same slogan, the neutral rule becomes harder to defend. Apply the same standard to similar items, similar messages, and similar roles.

Train supervisors to stop at the first question. If a supervisor sees a message item, the immediate task is to identify the item, the message, and the work context. The supervisor should not decide the slogan's meaning, its politics, or its taste.

Keep the record narrow. Note the item, the location, the time, the people involved, and the operational problem. If the file contains only the slogan and your reaction to it, the enforcement file is weak.

When in doubt, escalate. A manager who is unsure whether the message is protected should pause, preserve the item description, and ask HR or counsel before discipline. A quick warning can become a bad record if the underlying conduct was protected.