### Question
How does OPERATIONS OF CARRIERS define mobile communications device?


### Answer
Under *49 U.S.C. § 41725*, **mobile communications device** is defined as:

> any portable wireless telecommunications equipment utilized for the transmission or reception of voice data

#### Citation:
  - *49 U.S.C. § 41725*
  - Heading: **SUBTITLE VII-AVIATION PROGRAMS > PART A-AIR COMMERCE AND SAFETY > subpart ii-economic regulation > CHAPTER 417-OPERATIONS OF CARRIERS > SUBCHAPTER I-REQUIREMENTS**

