February 25, 2026|
Post by: LBIES Staff
How Cities Vet and Approve Third-Party Evaluators for Unlisted Electrical Equipment
If you have ever installed a piece of industrial, laboratory, or custom-built equipment and been told by an inspector that it needs “third-party approval,” you are not alone. This moment often happens when a machine arrives onsite without a familiar UL or CSA mark. At that point, many owners and contractors ask the same question: [...]