Frequent Questions

What are primary and secondary NAICS codes?

What is the definition of primary NAICS code?  How can there be more than one NAICS code for a facility?


A primary NAICS code generally represents those goods produced or services performed by an establishment that have the highest value added.  Form R and the Alternate Certification Statement (Form A) provide space for more than one NAICS code because a facility may be made up of several establishments each of which may have a different primary NAICS code.  Additional information on NAICS codes can be found on the NAICS TRI Web site.

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