
NFPA 790 is based on ISO/IEC 17020 and ISO/IEC 17065, but it’s been changed to fit the specific needs of field evaluations. The standard includes training for people who do these evaluations, both when they start and as they continue working.
The 2024 version of NFPA 790 is important for electrical products and parts that haven’t been approved or labeled, and for products that are different or changed after they’re made.