I have to admit, for once, CASA have given some pretty straight forward answers in the FAQ
Frequently asked questions
What is the minimum size for an EFB?
EFBs need to be able to display information in a manner comparable to the paper aeronautical charts and data they replace. They should have a screen approximately A5 therefore, have a screen size of at least A5 i.e. 210 x 148 mm; 8.3 x 5.8 in. A PDA can only be used for calculations.
A smartphone is not appropriate or acceptable as either a primary or backup device.
What is the maximum size for an EFB?
There is currently no maximum size for an EFB.
What approvals are required for the use of EFBs?
CASA does not approve EFB hardware. An approval will only be required if the device is attached (with a mount) to the aircraft structure.
Does CASA validate the software on my EFB?
Operators that intend to use software applications for weight and balance will need to have it validated by a weight control authority (CAO100.7). Performance applications will need to be validated by a qualified person and evidence of the validation retained for CASA review if requested.
What is the legal requirement for a backup to my EFB?
For AOC holders, a backup is mandatory. It is at the operator’s discretion whether the backup is another EFB, or hardcopy charts, maps and documents. The requirements of CAR 233(1)(h) are clear in that the pilot must have the latest documents from an approved vendor readily accessible. It is the readily accessible requirement that prompts the need for backup and all pilots need to ensure how they meet that requirement in the event of a tablet malfunction.
An electronic device such as another tablet is an acceptable backup. Private pilots can use tablet devices as a primary means of in-flight documentation, as long as the documentation is from an authorised source (such as Airservices, Jepperson or Lido).
Which applications for EFBs are approved by CASA?
Currently only those sourced from the Airservices Aeronautical Information Package (AIP), Jepperson or Lido.
Is OzRunways approved by CASA?
OzRunways is not authorised under CAR 233(1)(h), although this may change in the future. Private pilots can use OzRunways for situational awareness in flight but not as a primary means of navigation.