I think there is a lot of misinformation flying around on this topic. Just had a bit of a wade through the actual implementation of the new legislation (Road Vehicle Standards Rules 2018) .......
I agree. I've read the legislation and it doesn't actually state rego requirements that I can see... Happy to be corrected however. As this Act replaces the current Act in full it's hard to comprehend and to see if this Act covers registration. Without spending hours I don't have dissecting it all, I think this Act covers bringing the car in and the States will determine what can and cannot be registered.
I just spoke to the NSW RMS and they advised me (Colin was the bloke if it goes to court) that the Federal Government has no say in States determining rego. So as I suspect, the new laws are dealing with the ability for people to bring in new cars that are not offered here, rather than us hoons bringing in old cars for fun.
As long as your Mustang complies with the section quoted above by BAC you then have to comply with the State you are registering it in laws.
For me and my '70 I need to have the indicators changed to the reverse lights (you must have 2 x stop/brake lights showing when in use) and VSCC certification for the seat belts.
I did find this however:
What's new
Extension of commencement of Road Vehicle Standards legislation
The Australian Government has extended the commencement date of the Road Vehicle Standards legislation to ensure that governments, manufacturers and importers have sufficient time to prepare for the transition to the new arrangements.
The Government will continue to work with all affected stakeholders to agree on and set a new commencement date, which will be no later than 1 July 2021. Further updates on matters related to the Road Vehicle Standards legislation will continue to be posted on this website.
This was off
https://www.infrastructure.gov.au/vehicles/rvs/index.aspx so I gather we are safe for a few years yet?