A Checklist of the main questions to answer and issues to consider when developing a program to screen visitors and regulate admission to a professional service firm or general business operating in a commercial office space during a public health emergency, epidemic, or pandemic. This Checklist addresses pre-admission precautions (such as face coverings and hand sanitation), health checks, visitor capacity limits, cleaning practices, and contact tracing. Companies should tailor this Checklist to address the specific needs of their operations.