The National Archives of Australia has a Disaster Preparedness Manual for Commonwealth Agencies (PDF 792KB) that provides comprehensive information on recovering records after a disaster, whatever the scale.

Further advice

Contact the Agency Service Centre for advice on recovering records after a flood or fire.

We can't generally offer direct assistance in the event of a disaster. However, we can give professional advice and direct you to suitable disaster recovery and conservation specialists that may be able to help you recover the damaged records.