Third Party Inspection Agency List

As an accredited third-party agency, NTA provides code evaluation, product certification, inspection, engineering, plan review, and testing services, as well as independent quality and standards compliance verification for building product manufacturers.
https://www.icc-nta.org/

Fire Testing

As an accredited third-party agency, NTA provides code evaluation, product certification, inspection, engineering, plan review, and testing services, as well as independent quality and standards compliance verification for building product manufacturers.

https://www.icc-nta.org/