New York City will now face a new rule when it comes to serving raw fish. The New York Times reports, regardless of how fresh the fish is, restaurants must freeze it for an extended period of time in order to prevent bacteria and parasites.

While most places are already doing this as a precaution, the process is now law. Outbreaks of salmonella have caused major concerns in the past few years. The new rule will put those fears to ease among consumers who enjoy eating raw fish.

Starting in August, fish must be kept frozen anywhere from 15 hours to an entire week depending on the restaurants' freezer temperature. Certain seafoods like shellfish and farm-raised fish, however, are exempt from the freezing laws.