### Question
What is the definition of low-polluting fuel?


### Answer
The definition of **low-polluting fuel** is as follows in *42 U.S.C. § 7554*:

> methanol, ethanol, propane, or natural gas, or any comparably low-polluting fuel

#### Citation:
  - *42 U.S.C. § 7554*
  - Heading: **SUBCHAPTER I-PROGRAMS AND ACTIVITIES > Subchapter Referred to in Other Sections > Part Referred to in Other Sections**

