This data is provided by Bus Australia and provides known bus operator fleets in Australia. The information provided covers the various regions in each state, and the list of operators in each region. Detailed information about each operator is also available including full fleet listing, fleet summary, livery summary, buses to be delivered and disposal lists.
This is a companion discussion topic for the original entry at https://opendata.transport.nsw.gov.au/dataset/australian-bus-fleet-lists