### Question
What is the definition of operational submarine duty?


### Answer
The definition of **operational submarine duty** is as follows in *37 U.S.C. § 301c*:

> duty—


(i) while attached under competent orders to a submarine, while serving as an operator or crew member of an operational submersible (including an undersea exploration or research vehicle), while undergoing training preliminary to assignment to a nuclear-powered submarine, while undergoing rehabilitation after assignment to a nuclear-powered submarine, or, in the case of a member qualified in submarines, while attached as a member of a submarine operational command staff whose duties require serving on a submarine during underway operations—


(I) during one calendar month: 48 hours, except that hours served underway in excess of 48 as a member of a submarine operational command staff during any of the immediately preceding five calendar months and not already used to qualify for incentive pay may be applied to satisfy the underway time requirements for the current month

#### Citation:
  - *37 U.S.C. § 301c*
  - Heading: **CHAPTER 5-SPECIAL AND INCENTIVE PAYS > SUBCHAPTER I-EXISTING SPECIAL PAY, INCENTIVE PAY, AND BONUS AUTHORITIES**

