### Question
How does the law define United States air carrier?


### Answer
Under *39 U.S.C. § 3401*, **United States air carrier** is defined as:

> given the term "air carrier" in section 40102 of title 49.

#### Citation:
  - *39 U.S.C. § 3401*
  - Heading: **PART IV-MAIL MATTER > CHAPTER 34-ARMED FORCES AND FREE POSTAGE**

