### Question
Can you define what heavy duty vehicle means?


### Answer
**Heavy duty vehicle** is defined as the following in *42 U.S.C. § 6374*:

> a vehicle of greater than 8,500 pounds gross vehicle weight rating

#### Citation:
  - *42 U.S.C. § 6374*
  - Heading: **CHAPTER 77-ENERGY CONSERVATION > SUBCHAPTER III-IMPROVING ENERGY EFFICIENCY > Part H-Encouraging Use of Alternative Fuels**

