The Bushfire Managment Overlay is land identified in Victoria that may be significantly affected by bushfires. The overlay tries to ensure that if a fire is present in these areas then there are adequate measures in place to reduce the risk.
Various levels are identified as Bushfire attack levels -BAL-. Depending on the BAL level your building requirements will be different.
One requirement when building in these zones is to create a bushfire management plan. This plan must provide information for on-site water supply. Bushfire tanks are required in these situations.
On-site water is required in an aboveground steel or concrete tank. Read the rest