### Question
How does the law define open motor?


### Answer
Under *42 U.S.C. § 6311*, **open motor** is defined as:

> a motor having ventilating openings which permit passage of external cooling air over and around the windings of the machine

#### Citation:
  - *42 U.S.C. § 6311*
  - Heading: **CHAPTER 77-ENERGY CONSERVATION > SUBCHAPTER III-IMPROVING ENERGY EFFICIENCY > Part A&ndash;1-Certain Industrial Equipment**

