08/12/2025
Thanks to the team at NSW RFS - Moonee Brigade for the below info.
Good day all. With the fires around the state making headlines and a lot of fire terminology in the news, there is quite a bit of confusion surrounding the difference between HRs and back burns. Sometimes these terms do get mixed up by not only the general public but members of the media, and it is important to be informed about the difference.
🔥𝐇𝐚𝐳𝐚𝐫𝐝 𝐑𝐞𝐝𝐮𝐜𝐭𝐢𝐨𝐧 (𝐇𝐑)🔥 :
HR's are one method used to prepare for oncoming bushfire seasons. Hazard Reduction burns are both extensively planned and resourced long before being undertaken. Their purpose is to help reduce the fuel available to a fire IF one were to start. Test burns are conducted before the HR commences, and the burn itself will be conducted on a day where the weather is favourable. It doesn't remove the threat of fire completely, and certainly doesn't reduce the need for you to have your property and family prepared.
There are several different types of Hazard Reduction (HR), including controlled burning, mechanical clearing (such as clearing undergrowth and ground fuels with machinery) or even removing fuel by hand.
🔥𝐁𝐚𝐜𝐤𝐛𝐮𝐫𝐧𝐢𝐧𝐠🔥:
Backburning is a tactic used by firefighters to slow the progression of an active advancing fire by burning out the available fuel between an established control line and the approaching main fire head (fighting fire with fire). The control line used for back-burning may be a pre-existing firebreak such as a road, track, stream, creek, river or a specially constructed firebreak made with hand tools or machinery.
Below is a graphic showing how a back burn is undertaken.