Which of the following is NOT a requirement for food service establishments?

Providing written menus to customers is not a universal requirement for food service establishments, which makes this option the correct choice. While having menus helps communicate food offerings and pricing to customers, regulations typically focus more on health and safety standards. Establishments must follow guidelines related to regular health inspections to ensure compliance with local health codes, maintain proper food storage conditions to prevent spoilage and contamination, and adhere to sanitation regulations to ensure a safe dining environment. These aspects are critical for protecting public health and ensuring food safety, but written menus are often considered a matter of customer service or business practice rather than a legal requirement.