What labeling requirement applies to cooking appliances?

All appliances must be labeled to ensure safety, compliance with building codes, and proper consumer information. The labeling serves multiple purposes, including providing users with essential operational guidelines, safety warnings, and manufacturer details. This requirement is consistent across various types of appliances, whether they are electric, gas, commercial, or household. Proper labeling is crucial for both installation and operation, as it aids in identifying the appliance's capabilities and limitations, thereby enhancing user safety and awareness.

In the context of the other options, labeling just for commercial appliances or household appliances would overlook the importance of safety and information dissemination across all appliances, undermining the standardization necessary for all cooking equipment. Similarly, limiting the requirement to electric appliances would disregard gas appliances, which also necessitate clear labeling for informing users about safe usage and potential hazards.