A kosher restaurant is an establishment that serves food that complies with Jewish dietary laws (kashrut). These businesses, which also include diners, cafés, pizzerias, fast food, and cafeterias, and are frequently in listings together with kosher bakeries, butchers, caterers, and other similar places, differ from kosher style establishments in that they operate under rabbinical supervision, which requires that the laws of kashrut, as well as certain other Jewish laws, must be observed. Such locations must be closed during Shabbat and Jewish holidays if under Jewish ownership.