What does it mean for equipment to be listed and labeled?

What does it mean for equipment to be listed and labeled?

• A. It is certified by the manufacturer for sale.
• B. It has been tested and approved by a recognized testing laboratory for its intended use and conditions.
• C. It is approved by a local inspector for a specific installation.
• D. It has been field-tested on site.

Answer: (B)

Equipment that is listed and labeled has been tested by a recognized testing laboratory and approved for its intended use and the conditions specified by that listing. A listing comes from an independent lab such as UL, CSA, or ETL, after evaluating the product for safety, performance, and compatibility with its installation environment. The label on the device identifies the listing agency, the model, and any use limitations or conditions, giving installers and inspectors a clear basis to verify that the equipment is appropriate for the specific application. This isn’t about manufacturer certification for sale, nor is it about a local inspector granting approval or on-site field testing. Listing is a pre-approval based on standardized testing, and the accompanying label communicates exactly where and how the equipment may be used.

Equipment that is listed and labeled has been tested by a recognized testing laboratory and approved for its intended use and the conditions specified by that listing. A listing comes from an independent lab such as UL, CSA, or ETL, after evaluating the product for safety, performance, and compatibility with its installation environment. The label on the device identifies the listing agency, the model, and any use limitations or conditions, giving installers and inspectors a clear basis to verify that the equipment is appropriate for the specific application.

This isn’t about manufacturer certification for sale, nor is it about a local inspector granting approval or on-site field testing. Listing is a pre-approval based on standardized testing, and the accompanying label communicates exactly where and how the equipment may be used.