In addition the binding nature of the Australian Airspace Act 2007 on CASA means that they are responsible for meeting the vision of the act I.E.
"PART 2 – INTRODUCTION
2.1 Purpose of the Australian Airspace Policy Statement
This Australian Airspace Policy Statement......... It provides guidance to the Civil Aviation Safety Authority (CASA), as airspace regulator, on the administration of airspace as a national resource. As provided for by Section 11A of the
Civil Aviation Act (1988),
CASA must exercise its powers and perform its functions in a manner consistent with this Policy Statement. ....
2.2 The Australian Government’s Vision
Aviation is integral to Australia’s economy and its links to the rest of the world. .... Aviation relies on safe and efficient airspace administration and regulation.
The Australian Government is committed to a world-leading system of aviation for Australia, including arrangements for airspace administration that will:
ensure that Australian airspace is administered and used safely;
ensure that Australian airspace is used efficiently and that, where possible, there is equitable access to our airspace for all users of that airspace;
meet Australia’s obligations as a member of the International Civil Aviation Organization (ICAO);
be recognised as world’s best practice; and
best meet Australia’s needs. "
I'll get off my soap box.........soon.