### Question
How is the term official travel defined?


### Answer
The term **official travel** is defined in *10 U.S.C. § 2646* as the following:

> travel at the expense of the Federal Government

#### Citation:
  - *10 U.S.C. § 2646*
  - Heading: **Subtitle A-General Military Law > PART IV-SERVICE, SUPPLY, AND PROCUREMENT > CHAPTER 157-TRANSPORTATION**

