### Question
How does the law define low-Btu gas?


### Answer
Under *50 U.S.C. § 167*, **low-Btu gas** is defined as:

> a fuel gas with a heating value of less than 250 Btu per standard cubic foot measured as the higher heating value resulting from the inclusion of noncombustible gases, including nitrogen, helium, argon, and carbon dioxide

#### Citation:
  - *50 U.S.C. § 167*
  - Heading: **CHAPTER 10-HELIUM GAS**

