Major Hazard Facility Calculator

This calculator provides information to assist Agsafe members premises that are, or are likely to become, major hazard facilities (MHF) to meet their obligations under the Work Health and Safety Act (the WHS Act) and the Work Health and Safety Regulations (the WHS Regulations) with respect to the processes for notification and determination of a MHF.

The WHS Regulations require operators of facilities or proposed facilities to notify the regulator of Schedule 15 chemicals that are present or likely to be present at the facility. The regulator will then make a determination as to whether the facility is a MHF.

This tool has been designed to calculate the active constituent quantities of Toxic and Very Toxic chemical products commonly stored in Agsafe member warehouses. Premises storing >10% of the Major Hazard Facility threshold, using the method detailed in Safe Work Australia’s Guide for Major Hazard Facilities Notification and Determination need to notify the regulator in all states and territories (except Western Australia and Victoria).

Agsafe has been advised by NSW Regulators that a change in methodology for calculating MHF thresholds is being considered. Should such a change in methodology be implemented thresholds calculated using this MHF calculator may not be applicable when determining MHF notification obligations. The Agsafe Industry Standard and current Regulations require NSW premises to notify as MHF or potential MHF based on the current methodology (as calculated by the Agsafe MHF calculator) pending future changes.

Please note: Not all AgVet chemical products are classified as Toxic or Very Toxic (as listed in Schedule 15).

How to use the calculator

Find and click on your company name in the Select Company dropdown. Your company name and address will appear on the report when using the Print option.

Add your peak quantity amounts to any of the pre-populated chemical products you stock.

Click Add more then Select in the Common Trade Names or Active Constituent columns to add more products to the list.

After adding more chemical products add your peak quantity amounts.

To print a report, click either of the Print buttons. This will generate a PDF that you can either print or save to your computer. (Please note: The print function will NOT WORK if no company is selected from the dropdown).

To clear any information you have added, refresh the page.

Please email premises@agsafe.org.au if you think other chemical products should be included in the calculator.

Understanding the results

If the Ratio is <0.1 - No action is required.

If No appears in 10% MHF and the 100% MHF - No action is required.

If the ratio is >0.1 and Yes appears in 10% MHF - Notify the regulator in your jurisdiction. As the 10% of MHF threshold has been reached.

If the ratio is >1.0 and Yes appears in 100% MHF - Notify the regulator in your jurisdiction. As the MHF threshold has been reached.

For any assistance please call Agsafe on 02 6206 6888.

^{Disclaimer of liability}

^{The information supplied from the Major Hazard Facility calculator tool considers common products within the Agvet Chemical Industry and the reports generated are a guide only. It should be used for general information purposes only. It is not claimed that the tool represents all products or the most significant products in the Agvet chemical industry which may contribute to the MHF thresholds. You should not rely upon the information as a basis for making any business decision without seeking further advice.}

^{Whilst we endeavour to keep the information up to date and correct, Agsafe makes no representations or warranties of any kind, expressed or implied about the completeness, accuracy, reliability, suitability or availability with respect to the website, Major Hazard Facility calculator tool or reports generated.}

^{Any reliance you place on such material is therefore strictly at your own risk.}