The FAA on May 7 released an updated version of advisory circular (AC) 91-21.1C for the use of portable electronic devices (PED) aboard aircraft. The AC was originally created to halt the use of a variety of portable electronic devices that could interfere with aircraft navigation or communication systems, especially concerning under IFR conditions.

The updated recommendations are one means, but not the only means, of complying with FAR 91.21. The AC highlights companion publications such as FAA InFO 13010, Expanding Use of Passenger Portable Electronic Devices and InFO 13010SUP, FAA Aid to Operators for the Expanded Use of Passenger PEDs, to aid an operator in determining if it can safely expand PED use to more phases of flight, as well as what actions it should take when making that determination.

Both InFO 13010 and 13010SUP provide acceptable methods for aircraft operators to expand PED use in compliance with 91.21, 121.306, 125.204, and 135.144. The new version cancels the 10-year old AC91.21.B