### Question
What is the definition of energy efficiency project?


### Answer
The definition of **energy efficiency project** is as follows in *15 U.S.C. § 638*:

> the installation or upgrading of equipment that results in a significant reduction in energy usage

#### Citation:
  - *15 U.S.C. § 638*
  - Heading: **CHAPTER 14A-AID TO SMALL BUSINESS**

