HUMPHREY Kevin
Lakesedge Engineering
Services Pty Ltd
4 Willow Tree Road
NORTH WYONG
NSW 2259
P: (02) 4353 0866
F: (02) 4353 0877
M: 0409 454
Also have a looks at this links its got them all for NSW.
591http://
www.rta.nsw.gov.au/registration/downloads/vsi/vsi_15_engineering_signatories_rev_20_23march_2010.pdf
Is the vehicle registered or going to be because there is a few new changes coming near the end of the year regarding engineer certificates etc Engineering signitories and the whole process. Essentially engineers certificates will become void after a certain date and a new method called VSCCS (Vehicle Safety and Compliance Certification Scheme) will come into effect where once it is signed off by the engineer the rta will be notified and then you will have 21 days (i think) to present the car for a blue slip and adjustment of records done.
So if you have a engineers certificate currently but havent notified the rta of it or had an adjustment of records done i suggest you do because after a certain date they will no longer be recognised.