A local government's law regulating land use is called what?

A local government's law regulating land use is known as a zoning ordinance. Zoning ordinances are established to manage the development and use of land within a municipality. They dictate how property in specific geographic zones can be used, which could include residential, commercial, industrial, or agricultural purposes. By regulating land use, these ordinances help to ensure that different types of land activities are compatible, promote public health, and manage growth in an organized manner.

To contrast with the other options: a building code primarily focuses on the construction and safety standards for buildings; a sanitary code governs issues related to public health and sanitation, such as waste disposal and hygiene standards; and an occupational code relates to workplace regulations and occupational safety. These do not specifically address land use regulations like zoning ordinances do.