Please be aware that the NCOP only represents the technical requirements that must be met - administrative requirements are dealt with separately by each state and territory's administrative guidelines or business rules.
Each engineer will focus on their own pet thing. Some love doing brake tests while others fuss about windscreen wipers.
This is the checklist I used, after I submitted it I was required to get another engineer to counter sign it for transparency reasons.
http://www.infrastructure.gov.au/roa...t_3Feb2006.pdf
A couple of photo's a letter and I was through.
I don't doubt there is a National system but it is not enforced the same in each state and the goal posts can and do move.
The dumb thing about the current checklist 2006 is that some of the items on the list are no longer required as part of current ADR's.
Things like glare reduction in the field of view and unleaded fuel stickers etc etc etc.