### Question
How does the law define alternative fuel vehicle?


### Answer
Under *23 U.S.C. § 166*, **alternative fuel vehicle** is defined as:

> a vehicle that is operating on—


(A) methanol, denatured ethanol, or other alcohols

#### Citation:
  - *23 U.S.C. § 166*
  - Heading: **CHAPTER 1-FEDERAL-AID HIGHWAYS**

