There is an article in
The Australian today ("Aviation rule changes still safe, says former CASA chief") with Bruce Byron's comments on changing the Act. Here is a quote from the article:
“Mr Byron said he had tried to make similar changes to the act when he ran CASA between 2003 and 2009. “This part of the act has sat there in stone for 30 years and I think a review of it would be appropriate,” he said…”
Here is a link to the article.