### Question
How is the term Btu defined?


### Answer
The term **Btu** is defined in *42 U.S.C. § 8302* as the following:

> British thermal unit

#### Citation:
  - *42 U.S.C. § 8302*
  - Heading: **CHAPTER 92-POWERPLANT AND INDUSTRIAL FUEL USE > SUBCHAPTER I-GENERAL PROVISIONS**

