### Question
How does the law define duty call?


### Answer
Under *49 U.S.C. § 21109*, **duty call** is defined as:

> a telephone call that a railroad places to an employee to notify the employee of his or her assigned shift time

#### Citation:
  - *49 U.S.C. § 21109*
  - Heading: **SUBTITLE V-RAIL PROGRAMS > PART A-SAFETY > CHAPTER 211-HOURS OF SERVICE**

