### Question
How does the law define North American Industry Classification System?


### Answer
Under *42 U.S.C. § 18811*, **North American Industry Classification System** is defined as:

> the standard used by Federal statistical agencies in classifying business establishments for the purpose of collecting, analyzing, and publishing statistical data relating to the business economy of the United States

#### Citation:
  - *42 U.S.C. § 18811*
  - Heading: **CHAPTER 162-ENERGY INFRASTRUCTURE > SUBCHAPTER V-ENERGY EFFICIENCY AND BUILDING INFRASTRUCTURE > Part C-Smart Manufacturing**

