Description / Abstract: DO-294C completes the work of Special Committee (SC) -202 and provides the results of work on dialog with consumer electronics manufacturers’ associations on consensus recommendations for facilitating safe use of PEDs onboard aircraft. Further, the document incorporates the previously released Change 1 to DO-294B, and addresses changes to align with the work done for DO-307. Changes were made to introductory materials in Appendix 5.B, Appendix 5.C, Appendix 6.D, and Appendix 10. The document addresses near-term T-PED technologies such as existing devices enabled with cellular technologies, wireless local area networks (WLANS), and wireless personal area networks (WPANS) as well as emerging PED technologies, for example active RF Identification (RFID) tags, transmitting medical devices, and picocells for devices enabled by cellular technologies for use on board aircraft. The document defines and recommends a process by which aircraft operators and/or manufacturers may assess the risk if interference due to a specific T-PED technology within any aircraft type and model It also provides a means for aviation authorities and others to determine acceptable and enforceable policies and processes for passenger and crew use of T-PEDs.