FAA Aircraft Dispatcher (ADX)Regulations (Part 121)Medium

A dispatcher is reviewing company policy on passenger use of portable electronic devices (PEDs) under 14 CFR 121.306. Which statement correctly reflects this regulation?

  1. APEDs are prohibited on all Part 121 flights regardless of circumstances
  2. BThe certificate holder may allow use of PEDs unless the pilot in command determines they may cause interference with aircraft navigation or communication systems
  3. COnly crewmembers are permitted to operate PEDs at any time during flight
  4. DPEDs may only be used above 10,000 feet MSL under all circumstances
Show answer & explanation

Correct answer: B. The certificate holder may allow use of PEDs unless the pilot in command determines they may cause interference with aircraft navigation or communication systems

14 CFR 121.306 permits certificate holders to allow passenger use of portable electronic devices unless the operator determines, or the PIC determines, that a particular device may cause interference with the navigation or communication system of the aircraft.

Why the other options are wrong

  • A. PEDs are not universally prohibited; use is allowed absent interference concerns.
  • C. Passengers, not just crewmembers, may use approved PEDs.
  • D. The rule is not tied strictly to a fixed altitude for all devices.

Portable Electronic Devices (121.306)

Certificate holders may permit passenger use of PEDs unless it is determined the device may interfere with the airplane's navigation or communication equipment.

  • PIC/operator has authority to restrict PEDs causing interference
  • Not an outright ban on all devices
  • Company procedures implement PED policy consistent with the rule

Memory trick: 'No static, no problem — PEDs stay on unless they interfere.'

More Regulations (Part 121) questions