Excellence in Building Product Evaluation and Certification Independent, third-party services

Building and building product testing, inspection, and certification are so important, yet they can seem so overwhelming. That’s why ICC NTA is dedicated to providing the building industry professionals with the highest quality, third party services they need to ensure the public’s safety in the built environment.

ICC NTA is an Approved Agency per Section 1703 of the International Building Code and has been providing the industry with trustworthy testing, inspection, and certification services for many years, giving us a history of excellence in product evaluation, code compliance, and certification. Our in-depth understanding of building codes places us in a unique position to help you meet or exceed the applicable codes and regulations. From prototype testing to final certification, we are your ‘one-stop-shop’ for quickly getting your product to market, and with our highly rated customer service, we make the entire certification process simple, seamless, and efficient – saving you valuable time and money.

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Manufacturers use a third party agency for material testing for a variety of reasons including to verify that their product will perform as promised, to determine code compliance, or as part of a certification program.

Test and Evaluate

Code Evaluation

NTA is a third party provider of product and or code evaluation services, IAS accredited testing programs, experience and analysis of the results you need to give your building product credibility with both consumers and regulatory agencies.



Our certification services are accredited by the SCC and A2LA to verify a product‘s compliance to standards, conformity to code and provides verification of quality programs.



NTA is the third-party of choice for residential and commercial housing due to our ability to deliver inspections by knowledgeable personnel. By operating out of five regional offices nationwide, we are wherever you are.



NTA has licensed engineers in all 50 states, as well as Guam and the District of Columbia. Our engineering staff includes both Code Experts and P.E.’s to ensure that each client receives above and beyond customer service.


Plan Review

NTA is an industry leader in verifying that HUD, modular, residential and commercial buildings are compliant to the IRC, IBC and other standards. We provide third party plan review services in all 50 states and parts of Canada.

CAD Services

CAD Services

Our CAD technicians have many of the same certifications as our plan reviewers. This expertise and knowledge means that your plans are created with code compliance in mind from the very beginning.

Expert Witness

Expert Witness

Expert Testimony for the Housing and Building Industry