### Question
How is the term motor vehicle defined?


### Answer
The term **motor vehicle** is defined in *23 U.S.C. § 405* as the following:

> a vehicle driven or drawn by mechanical power and manufactured primarily for use on public streets, roads, and highways, but does not include a vehicle operated only on a rail line

#### Citation:
  - *23 U.S.C. § 405*
  - Heading: **CHAPTER 4-HIGHWAY SAFETY**

