Which statement about listed or labeled equipment is true according to the material?

• A. It must be installed according to the listing or labeling
• B. It can be installed in any manner
• C. It does not need to be installed
• D. It must be replaced if damaged

Answer: (A)

The main idea is that listed or labeled equipment comes with an approved way it should be used and installed. The listing or labeling specifies how the device is meant to be mounted, wired, and used, as well as any environmental or rating conditions. Therefore, it must be installed exactly as indicated to ensure safety, proper operation, and code compliance. This is why that statement is correct: following the listing or labeling is the required practice. The other options contradict the purpose of listing—equipment should not be installed in arbitrary ways, it isn’t exempt from installation, and whether or not to replace damaged parts isn’t dictated as a blanket rule by listing.