Restaurant food safety in the United States is regulated by a layered system of local, state, and federal agencies. No single agency handles it all. The FDA sets the national blueprint, but your local or state health department is the agency that actually walks into a restaurant, inspects the kitchen, and decides whether it stays open.
The FDA Sets the Rules, but Doesn’t Enforce Them
The U.S. Food and Drug Administration publishes the FDA Food Code, a detailed model that covers safe food handling in restaurants, grocery stores, and institutions like nursing homes. It addresses everything from cooking temperatures to handwashing protocols to how food should be stored. But the Food Code is not federal law. It’s a recommendation, a scientifically grounded template that local, state, and tribal governments use to write or update their own food safety regulations.
Think of it like a building code that a national organization publishes but each city chooses whether and how to adopt. As of December 2024, only seven states (Colorado, Connecticut, Illinois, Mississippi, Ohio, Pennsylvania, and Utah) had adopted the most recent 2022 Food Code, covering roughly 16% of the U.S. population. The remaining states operate under older versions or their own adapted rules. This means the specific regulations a restaurant must follow vary depending on where it’s located.
Local and State Health Departments Do the Actual Inspecting
The agencies you interact with most directly are county and city health departments. These are the people who show up unannounced at restaurants, check food temperatures, look at storage practices, examine employee hygiene, and issue violations. In some states, the state health department handles restaurant oversight directly. In others, authority is delegated to county or municipal agencies. Some states split duties further: Ohio’s Department of Health oversees restaurants while its Department of Agriculture handles retail food stores.
During an inspection, violations fall into two categories. Critical violations are problems that can directly cause foodborne illness: meat cooked to the wrong temperature, improper food storage, bare-hand contact with ready-to-eat food, or inadequate cooling of leftovers. These must be corrected immediately. Non-critical violations cover maintenance and sanitation issues, like a damaged floor tile or a missing thermometer, that are unlikely to make someone sick on their own but still need to be fixed.
How often a restaurant gets inspected depends on the jurisdiction. Some areas inspect once or twice a year as a baseline, with more frequent visits for restaurants that have a history of violations.
Grading Systems Vary by City
Some cities make inspection results visible to diners through public grading systems. New York City launched its well-known letter-grade program in 2010, requiring restaurants to post a grade card (A, B, or C) in the window based on their inspection score. The system uses a point scale where lower scores are better: a score of 0 to 13 earns an A, while 28 points or higher can land a restaurant on a more frequent inspection schedule. Restaurants with high scores that don’t improve face potential closure.
Other cities use numerical scores, color-coded placards, or simply publish results online. There’s no national standard for how (or whether) inspection results are shared with the public, so transparency depends entirely on where you live.
The CDC Tracks Outbreaks but Doesn’t Regulate Restaurants
The Centers for Disease Control and Prevention plays a surveillance and investigation role rather than a regulatory one. The CDC monitors nationwide systems to detect patterns in foodborne illness, identifies which foods are making people sick during multistate outbreaks, and alerts the public about contaminated products. Most foodborne outbreaks happen within a single state or even a small part of one, and local or state health departments handle those investigations independently. The CDC steps in when outbreaks cross state lines or are unusually large or severe.
Where the USDA Fits In
The U.S. Department of Agriculture, through its Food Safety and Inspection Service, regulates meat, poultry, and egg products at slaughterhouses and processing plants. But once those products reach a restaurant kitchen, oversight shifts to the FDA framework and local health departments. So while the USDA ensures the chicken was safely processed before it was shipped, your local health inspector ensures the restaurant cooked and stored it properly.
How to Report a Problem
If you get sick after eating at a restaurant, your local health department is the right place to report it. The CDC recommends noting what you ate and what you did in the week before symptoms started. Health departments track these reports and look for clusters of people who ate at the same place or consumed the same food. If investigators follow up, they may ask for receipts, loyalty card numbers, or even leftover food for testing. These reports are how many outbreaks get caught early, so filing one matters even if your own illness feels minor.
You can typically find your local health department’s complaint line through your city or county government website, or by searching for “report food poisoning” along with your city name.