Technically, there is no law or official MTA rule that prohibits eating or drinking on the New York City Subway. Unlike systems in cities like Washington D.C. or Singapore, where eating can result in a fine, New York’s transit rules focus on "disruptive behavior" and littering rather than the act of consumption. However, there is a strong "unspoken code of conduct" and etiquette that New Yorkers expect. To be a "good peer" in the shared space, you should avoid foods with pungent odors (like fish or heavy garlic) and messy foods that might spill during the train’s sudden movements. Littering is a serious offense and carries a fine of up to $100, so you must take all wrappers and containers with you when you exit. While you will often see locals eating a quick bagel or slice of pizza during their commute, the MTA generally discourages it to help control the city's notorious "subway rat" population and to keep the cars cleaner for all passengers.