North American Industry Classification System (NAICS)

Read the introduction, which explains how industries are categorized in the United States. This system allows governments to measure the overall business activity in each sector of the economy.

Introduction

Purpose of NAICS

NAICS is an industry classification system that groups establishments into industries based on the similarity of their production processes. It is a comprehensive system covering all economic activities. There are 20 sectors and 1,057 industries in 2017 NAICS United States.

NAICS was initially developed and subsequently revised by Mexico's INEGI, Statistics Canada, and the U.S. ECPC (the latter acting on behalf of OMB) to provide common industry definitions for Canada, Mexico, and the United States that will facilitate economic analyses of the economies of the three North American countries. The statistical agencies in the three countries produce information on inputs and outputs, industrial performance, productivity, unit labor costs, and employment. NAICS, which is based on a production-oriented concept, ensures maximum usefulness of industrial statistics for these and similar purposes. NAICS United States is used by U.S. statistical agencies to facilitate the collection, tabulation, presentation, and analysis of data relating to establishments; and to provide uniformity and comparability in the presentation of statistical data describing the U.S. economy.

NAICS United States is designed for statistical purposes. Although the classification also may be used for various administrative, regulatory, and taxation purposes, the requirements of government agencies that use it for nonstatistical purposes played no role in its development or subsequent revision.