Code Lists

The Economic Census uses code lists from the North American Industry Classification System (NAICS) & the North American Product Classification System (NAPCS). Below you will find a link to each code list's site as well as a page within the Guidance section of this site that explains how to understand each one in relation to the Economic Census.

Search or Browse for NAICS codes

The North American Industry Classification System (NAICS) is the standard used by Federal statistical agencies in classifying business establishments.

NAICS Codes & Understanding Industry Classification Systems

Information to help you understand the North American Industry Classification System (NAICS), including the structure, sector definitions, & codes note covered.

Search or Browse for NAPCS codes

NAPCS is a comprehensive, market- or demand-based, hierarchical classification system for products (goods and services) that is not industry-of-origin based.

NAPCS-Based Codes

Information on understanding the North American Product Classification System (NAPCS), such as import and export codes & manufactured and mineral products.