### Question
What is the definition of aviation service?


### Answer
The definition of **aviation service** is as follows in *37 U.S.C. § 301b*:

> service performed by an officer (except a flight surgeon or other medical officer) while holding an aeronautical rating or designation or while in training to receive an aeronautical rating or designation

#### Citation:
  - *37 U.S.C. § 301b*
  - Heading: **CHAPTER 5-SPECIAL AND INCENTIVE PAYS**

