The 'we can't help it, it's the Office of Legal Drafting / Attorney General's Department's fault' just does not wash with me. Four easy steps:
1. Express the reg set from the word go in succinct, plain English with freely available (to all) expressions of intent for every regulation.
2. Consider the regs as a whole, keep them as simple as humanly possible, and resolve all contradictions and ambiguities (this is one part that has been particularly poorly handled with the 02 Dec regs)
3. Let the drafters do what they have to do, but make sure the tail is not allowed to wag the dog.
4. If the unswayable position is that CASA can't do anything about the complexity of the actual regs because of legal drafting issues (which I fully think is crap anyway), then based on the info in Step 1, get very simple plain English guides out for all regs that the public can use to get on with their lives, with the caveat that if anything controversial arises they must be aware that the actual reg is what's going to be used in court, if it comes to that.