The Recreational Boating Safety Improvements Report has been released and its worth reading the whole thing, but the main issue for Seaway Fishers is that PFD's will be required to be worn when crossing the entrance of the seaway. I'll try and find out exactly where you are required to wear them. The changes will occur on 1st January 2012.
Press Release: http://www.msq.qld.gov.au/About-us/MSQ-headlines/News-boating-safety-improvements.aspx