### Question
Can you define what fleet means?


### Answer
**Fleet** is defined as the following in *42 U.S.C. § 16131*:

> one or more diesel vehicles or mobile or stationary diesel engines

#### Citation:
  - *42 U.S.C. § 16131*
  - Heading: **CHAPTER 149-NATIONAL ENERGY POLICY AND PROGRAMS > SUBCHAPTER VII-VEHICLES AND FUELS > Part F-Diesel Emissions Reduction**

