Civil Aviation Safety Authority (CASA) -- 'Safe skies for all' CASA regulates civil aviation safety in Australia and the oper ... ation of Australian aircraft outside Australian territory. We license pilots, register aircraft, oversee safety and promote safety awareness. CASA is also responsible for ensuring Australian airspace is administered and used safely. CASA's social media moderation policy is available here: https://www.casa.gov.au/publications-and-resources/media-hub/our-use-social-media read more