Which sign is required to be displayed at handwashing sinks in food service establishments?

The requirement for displaying a sign at handwashing sinks in food service establishments is focused on promoting and ensuring proper hygiene practices among employees. The "Wash Hands Sign" serves this purpose by reminding staff to wash their hands before and after certain activities, especially after handling food or using the restroom. Effective communication about hand hygiene is essential in food service settings to prevent foodborne illnesses and ensure safe food handling practices.

The other options, while related to hygiene and food safety, do not specifically emphasize the action of handwashing at the sink. Signs like the "Sanitation Information Sign" or "Food Safety Sign" generally cover broader topics and may not convey the immediate reminder for employees to wash their hands. Similarly, an "Employee Hygiene Sign" might address hygiene practices overall but does not specifically focus on the act of handwashing at the sinks, which is critical in a food service environment. Therefore, the "Wash Hands Sign" is the most appropriate choice to fulfill this requirement effectively.