The actual legislation:
CAO 82.0 Appendix9:
11.1 If the pilot in command of an aircraft operated under an AOC uses an EFB as a
means of complying, or partially complying, with paragraph 233 (1) (h) of
CAR 1988, each certificate authorising operations under the AOC is subject to
the condition that the AOC holder must comply with, and ensure flight crew
compliance with, the applicable requirements in Appendix 9.
(c) it uses a screen which displays data in a size and form that is at least as
easily read and used as it would be in a paper document for which the EFB
would be a substitute;
From
CAAP 233-1(0):
3.2 This CAAP looks to provide guidance for the use of EFB by Air Operator’s Certificate (AOC) holders as they are bound to meet the obligations detailed in the AOC conditions set out in Appendix 9 of CAO 82.0. These AOC conditions will be applicable to foreign registered operators as detailed in Paragraph 10 of CAO 82.3 and Paragraph 10 of CAO 82.5. It will cover areas such as hardware, software, administration, maintenance, security and the operational approvals for the AOC holder. The CAAP will also provide general guidance for private operators.
Screen Size
7.5 The screen size and resolution will need to demonstrate the ability to display information in a manner comparable to the paper aeronautical charts and data it is intended to replace. The recommended minimum size of the screen is A5 (see ICAO Annex 4). If the intent of the installation is to display charts and maps, the device should be suitably sized to display the image without excessive scrolling.
From
CASA's website on EFB's:
And this regarding CAAP's from the
CASA website:
Civil Aviation Advisory Publications (CAAPs) provide guidance and information in a designated subject area, or show a method acceptable to an authorised person or CASA for complying with a related Civil Aviation Regulation. CAAPs should always be read in conjunction with the referenced regulations.