Which of the following is NOT regulated by industrial zoning?

Building color restrictions are typically not regulated by industrial zoning. Zoning is primarily concerned with how land can be used—specifically, it governs the types of activities allowed (like manufacturing, warehousing, and other industrial uses), the intensity of those uses (how much space can be taken up, hours of operation, etc.), and the environmental impact of those activities, which includes considerations regarding emissions, waste management, and overall environmental sustainability.

While zoning may touch upon aesthetic criteria in certain contexts (like residential or commercial areas where visual impact is a concern), industrial zoning generally does not incorporate specific rules about the color of buildings. Instead, it focuses more on functionality and safety of industrial operations. Hence, it's understood that concerns related to building appearance, such as color, are usually left to property owners or broader community standards rather than strict zoning regulations.