Frequently Asked Questions

Question: How do I determine the correct NAICS code for my company or for individual establishments in my company?

Answer: You can use the search feature at the U.S. Census Bureau NAICS main webpage. In the search box for the most recent NAICS, enter a keyword that describes your kind of business. A list of primary business activities containing that keyword and the corresponding NAICS codes will appear. Choose the one that most closely corresponds to your primary business activity, or refine your search to obtain other choices. Rather than searching through a list of primary business activities, you may also view the most recent complete NAICS structure with codes and titles by clicking on the link for the most recent NAICS on the U.S. Census Bureau NAICS main webpage. Then click on the two-digit Sector code to see all the NAICS codes under that Sector. Then choose the six-digit code of your interest to see the corresponding definition, as well as cross-references and index items, when available. If you know your old SIC code, you can also find the appropriate 2002 NAICS code by using the detailed conversion (concordance) between the 1987 SIC and 2002 NAICS available in Excel format for download at the "Concordances" link at the U.S. Census Bureau NAICS main webpage. You may also contact your nearest OSHA office or State agency for help in determining your NAICS code.

Standard Number: 1904.2, 1904 - Table of Contents