Food that is packaged in the operation and sold to customers for off-site consumption or held in self-service units must meet specific labeling requirements mandated by the FDA Food Code. One of the most critical components of this label is acomplete list of ingredients in descending order by weight. This is essential for consumer transparency and, most importantly, for the safety of individuals with food allergies. If the sandwich contains any of the "Big 9" allergens (milk, eggs, fish, crustacean shellfish, tree nuts, peanuts, wheat, soy, or sesame), they must be clearly identified on the label.

In addition to the ingredient list, the label must include the common name of the food, the quantity of the food (weight or volume), and the name and place of business of the manufacturer, packer, or distributor. While preparation time (Option B) and the preparer's name (Option A) are useful for internal quality control, they are not regulatory requirements for a retail label. The retail price (Option D) is a business requirement but not a food safety requirement. Proper labeling ensures that a guest can make an informed decision and avoids the risk of "hidden" allergens causing a life-threatening reaction. Managers must verify that any item packaged "on-site" for retail sale is labeled correctly before it is placed in the grab-and-go cooler or self-service display.