Final answer:
The New York City Health Code mandates that food items be stored at least 6 inches off the ground to prevent contamination and pest infestation.
Step-by-step explanation:
The New York City Health Code requires that all food items must be stored at least 6 inches off the ground. This regulation is designed to prevent contamination from the floor and to discourage pest infestation, thereby ensuring food safety. Storing food properly is critical for avoiding potential foodborne illnesses and maintaining a sanitary environment in food establishments.