### Question
What does part 135 mean?


### Answer
**Part 135** has the following meaning in *39 U.S.C. § 5402*:

> part 135 of title 14, Code of Federal Regulations

#### Citation:
  - *39 U.S.C. § 5402*
  - Heading: **PART V-TRANSPORTATION OF MAIL > CHAPTER 54-TRANSPORTATION OF MAIL BY AIR**

