Electronic Flight Bag (EFB) Definition Changes

Following the recent change by International Civil Aviation Organisation (ICAO) to the terminology relating to the different classes of EFBs, the IOMAR will be introducing these changes from 29th November 2018. The various types of EFB, namely Class 1, 2 and 3 will be replaced with either portable or installed.

Aircraft Operators whose aircraft already have an EFB approval are not required to take any immediate action; the change of terminology will be introduced on to the Operations Specification Certificate at the next issue of the certificate – at that point Operators should reflect the change of terminology in their operations manuals and their MEL where applicable. Many MMELs still refer to Class 1, 2 & 3. Where necessary the applicable EFB systems will need to be revised in the MEL at the next issue of the Ops Spec Certificate, for example:

Class 3 EFB becomes Installed EFB

Data Connectivity (Class 2) becomes Portable EFB Data Connectivity

Power Connection (Class 1 & 2) becomes Portable EFB Power Connection

Mounting Device (Class 2) becomes Portable EFB Mounting Device


The Registry’s related forms, Form 91 ‘Application for Approval of an EFB System’ and Registry Publication 4, Chapter 5.3 ‘Electronic Flight Bag’ have been updated to reflect the change of terminology. A definition of both types of EFB can be found below.

a) Portable EFBs are not part of the aircraft configuration and are considered to be PEDs. They generally have self-contained power and may rely on data connectivity to achieve full functionality. Modifications to the aircraft to use portable EFBs require the appropriate airworthiness approval depending on the State’s regulatory framework.

b) Installed EFBs are integrated into the aircraft, subject to normal airworthiness requirements and under design control. The approval of these EFBs is included in the aircraft’s type certificate (TC) or in a supplemental type certificate (STC).