I posted this previously:
"For my sins, I have obtained AOCs for various entities from Malta, the Bahamas, the USA, the UK, HKG, China, NZ and Oz; that is what I do.
I can tell you one thing, Oz may have convoluted regulations but they are not unique amongst regulators in that respect.
For a Chinese company I looked at an Oz AOC as they were that way 'inclined'. So, I checked the newly released (at the time) Part 61.
If you compare the Oz reg 61, single paragraph per page as opposed to, say, the FAA where they use smaller font than Oz and use two columns per page, a word count will show you (different numbers for PDF versus WORD), that the Oz Part 61 compared to the CFAR Part 61 and the 'Special' CFAR Part 61 are within plus or minus 5%.
NZ has more words than both.
Both the FAA and NZ have seperate 'offence' regulations that I have not added into the word counts.
So, CASA needs to get itself righted but they are light years ahead of many other nations and ICAO recognises that."