Having explored Europe’s NACE system last week, I want to turn this week to a similar framework that organizes economic activity across the U.S., Canada, and Mexico: NAICS, the North American Industry Classification System. Designed to modernize and harmonize reporting across the region, NAICS replaced the older SIC codes with a more detailed and process-oriented view of industries.
Its footprint extends across federal filings, business registrations, and statistical reporting. Here is how the system functions:
Primary use
NAICS supports regulatory reporting, economic measurement, and cross-border comparability among the three North American economies.
Concept
NAICS is built around how goods and services are produced, offering a process-based structure that reflects industrial activity across the region. It also accommodates country-specific economic characteristics while maintaining conceptual alignment with the UN’s ISIC standard.
Issuance
Unlike Europe’s assignment-based systems, NAICS relies on self-classification, meaning companies select the code or codes that best describe their principal business activities. This choice is significant because it influences registrations, filings, and compliance obligations.
Regional use
NAICS is adopted jointly by the United States, Canada, and Mexico as their shared industrial classification standard.
Regulatory application
Federal agencies across North America use NAICS in a wide range of programs, including those run by the U.S. Census Bureau, the Environmental Protection Agency, the Department of Labor, and OSHA. In some cases, the use of NAICS is required, and in many others, it has become the de facto reference for identifying industries in regulatory filings.
Data vendor adoption
Global and regional data providers integrate NAICS into their company and entity records, enabling consistent regulatory reporting and market analysis.
Standard published
The system is managed collaboratively by the U.S. Office of Management and Budget (OMB), Statistics Canada, and Mexico’s INEGI. Current and historical versions are available through their respective statistical agencies (here for the US)
Structure
NAICS uses a hierarchical code system of up to six digits. It begins with two-digit ‘Sectors’ and then expands into ‘Subsectors’, ‘Industry Groups’, ‘Industries’, and finally country-specific ‘National Industries’ at the six-digit level.
Lifecycle
The standard was introduced in 1997 during the NAFTA era and has been updated roughly every five years. The most recent version is NAICS 2022.
Example
62 Health Care and Social Assistance
– 621 Ambulatory Health Care Services
– 6214 Outpatient Care Centers
– 62149 Other Outpatient Care Centers
– 621492 Kidney Dialysis Centers
Takeaway
Any organization operating in North America will rely on NAICS for industry identification, whether for government registrations, regulatory submissions, or data-driven analysis. As firms update historical datasets, well-maintained crosswalk tables help map older SIC classifications to their modern NAICS counterparts.
If you’d like to learn more about NAICS, the NAICS Association site has a great deal of helpful information.
Next week, I’ll take a look at another classification approach shaped by a different set of priorities but just as central to how global markets organize information.
