As an increasing number of businesses begin to require face coverings in their facilities —whether as a result of a local legal mandate or in the interest of public safety — there has been a corresponding increase in the number of well-publicized reports of customers and guests reacting in a belligerent, hostile or even violent manner after being asked to comply with mask rules. What should your business do to minimize the chances of such an incident occurring in your workplace, and what should you do if an anti-mask guest disrupts your business? Here is a five-step plan to address this unfortunate part of our new reality.

Step One: Understand That You Are Permitted to Require Employees and Visitors to Wear Cloth Face Coverings or Masks

While many jurisdictions already require that businesses have their employees and any members of the public who enter their facilities wear masks, you may be wondering whether you can require masks if your jurisdiction does not have such a mandate in place. The answer is simple. As a private business, you can decide whether you allow customers or visitors onto your property if they are not wearing a mask. This is similar to the “no shirt, no shoes, no service” policy that you commonly see at businesses.

The Centers for Disease Control and Prevention (CDC) and World Health Organization (WHO) recommend the use of face masks or cloth face coverings as part of a comprehensive plan to help slow the spread of COVID-19. Face masks should be worn when employees or visitors will interact with other people. They are not the only method, but they are one of the strategies recommended by experts to slow the spread of COVI D-19.

CDC guidance provides several exemptions indicating who should not wear masks: “Cloth face coverings should not be placed on young children younger than two years of age, anyone who has trouble breathing, or is unconscious, incapacitated or otherwise unable to remove the cover without assistance.” And although you may have a policy or be subject to a state or local obligation to require facemasks, you may also have an obligation to accommodate the individual if doing so is possible. Taking a few precautions, as outlined below, will allow you to refuse entry to customers without masks.

Step Two: Be Proactive With Your Mask Policy

Providing notice to customers, visitors, and guests of your mask requirement prior to their arrival at your business can help reduce confusion and prevent an uncomfortable situation. Personal service providers (such as spas and salons) and hospitality businesses (such as hotels and restaurants) should provide notice of your policy when confirming reservations. A simple message to visitors and guests is best, not only confirming the reservation but highlighting your efforts to keep them and your staff safe by sharing your social distancing and mask requirements. Posting notices on your public-facing website, apps, and social media platforms to notify visitors of your policy is recommended; you can also use emails or texts as additional communication tools.

You should post conspicuous signs in prominent places at your entrances. The notices should include a statement that you have the right to refuse entry or service to anyone not complying with the requirement, particularly where required by local law. Many jurisdictions, in fact, already require such signage.

Consider having a staff member stationed at the entrance to remind guests of your requirement. Many businesses, such as retailers, hotels and restaurants, have taken their policy a step further to offer masks to visitors when they enter. For hotel guests who will be staying for extended periods, have guests sign an acknowledgment of the policy with an agreement to adhere to it. Be specific about consequences — tell guests that they will be asked to put a mask on if they are discovered without one and asked to leave the property if they refuse to comply.

Step Three: Train Your Staff

Your staff will be more likely to effectively enforce your requirement for masks if they understand why you have the requirement. Train your employees on all health and safety measures you are implementing, including the face mask requirement, and the reasons why you are implementing these measures. You should emphasize that these measures are for their protection as well as the protection of others that they interact with.

Educate your employees about your state and local government requirements, so they understand what is required and what is not. Additionally, because both OSHA and the CDC have included masks in their respective recommendations and guidance, requiring masks for both employees and visitors could help avoid an OSHA General Duty Citation or similar challenge by local health and safety authorities.

It is also crucial to train your visitor and customer-facing employees on how to politely request them to wear a mask. For example, consider something like, “Our policy is to require all visitors to wear a mask. May I provide one to you?” If the guest refuses, communicate a clear procedure to your employees for how to address this unfortunate situation (Step Five provides suggestions).

Step Four: Reasonably Accommodate Visitors If They Have a Medical Condition

Visitors may refuse to wear a mask by claiming they have an underlying health condition that prevents them from doing so. Although an individual may have a condition that makes it difficult to wear a mask (e.g., a pulmonary condition), it is highly unlikely the person is carrying a doctor’s note to that effect. Further, some state public health orders prohibit you from requiring medical documentation when this type of exemption is claimed. For these reasons, it is best not to require documentation from a visitor to support their request.

Even though you may have a policy or are subject to a state-ordered obligation to require facemasks, you may also have an obligation to accommodate the individual if doing so is possible. Instead of engaging in discussion with the customer or guest about whether they are exempt from your rule, consider whether you can offer an accommodation that would allow them to either access your business or your products/services. Some examples could include curbside service, online shopping for products, or by letting them know they can enter your business at another time. You could also look into other alternatives that would not inhibit breathing, such as requiring your guests to wear a full, clear face shield.

However, it is important to recognize that accommodation recommendations are based on highly fact-specific analyses that need to take into account the medical condition of the guest, the type of business you are conducting, and any specific state or local laws that present additional requirements (or punish offending businesses with stiff monetary penalties). You will want to coordinate with legal counsel for clarity regarding general or specific situations that may arise at your place of business.

What if a visitor doesn’t say they have a medical issue but instead presents a card or literature indicating that masks are unsafe? Social or political objections do not allow customers to refuse to wear masks. However, rather than engage in confrontations, it is best to remind a visitor of your rule and offer alternatives for how to access your business.