From my understanding NSW wants to adopt its own version on VSB14 which is the most recent set of guidelines that the ACT, NT, TAS & WA have adopted and are operating under in regards to modifying light vehicles.
NSW wants to introduce VSI59 which will be their version of VSB14. As it stands the changes have not yet been put in place and there is an organised group called the Australian Confederation of Motor Clubs (ACMC) that are seeking to help play a role in negotiating the new changes at the moment. In fact there is a rally at Eastern Creek on the 26th Feb to draw attention to the large number of people it will affect.
This is what I've understood from reading other sites and also this months Street Machine.
I got my ute engineered in Dec last year under VSB14 and it was fine, CA18, different ECU and all the other normal conversion stuff.
Here is the site for the ACMC,
www.confederationofmotorclubs.org.au