When does a Western Australian site need a dangerous goods licence?

A Western Australian site generally needs a dangerous goods site licence when it stores or handles licensable dangerous goods above the applicable manifest quantity, unless a specific exemption applies. The operator must count the goods across the site, examine their classes and storage arrangements, and check the current Dangerous Goods Safety (Storage and Handling of Non-explosives) Regulations 2007 and WorkSafe WA licensing guidance. A chemical list alone cannot answer the question: it must be paired with quantities, locations and the regulatory classification of each product.

This is a Western Australian site-licensing question, rather than an Australia-wide statement about a hazardous-chemicals register. A model-WHS manifest may be a related record in other jurisdictions, but the WA licensing requirement has its own regulations, thresholds and exceptions. It is also separate from licences for explosives, security-sensitive ammonium nitrate, dangerous-goods transport and a major-hazard facility. Do not infer that a site licence covers those activities.

First identify the goods and the site

Start with a site plan and a defensible inventory. List each dangerous good, its current safety data sheet, dangerous-goods class or division, packaging, maximum quantity that may be present, and the precise location where it is stored or used. Include packages, bulk tanks, process vessels, pipelines and equipment, rather than only the stock in a warehouse. WorkSafe's licence threshold guidance expressly says that all dangerous goods present must be included in the quantity calculation.

“Maximum” matters. A warehouse may hold a low average volume but receive an occasional delivery that pushes it above the limit. Establish a realistic operating maximum from deliveries, seasonal peaks, process hold-up, returns and temporary storage. If there are multiple operators on one property, clarify site and operational boundaries before calculating; a spreadsheet that silently omits another operator's tank is not evidence that the site is below a threshold.

The SDS is a starting point, not the full legal analysis. Verify that it is current and matches the actual product; identify the UN number, class and packing group where relevant. Then use the current Schedule 1 table and regulator guidance to determine the relevant manifest quantity. Some goods require different treatment depending on classification or containment. Where classification is unclear, obtain competent dangerous-goods advice before choosing a convenient threshold.

Compare the calculated quantity with the right threshold

WorkSafe WA says that, unless otherwise exempted, a place must be licensed when dangerous goods are stored or handled in quantities exceeding the manifest quantities. Its guidance explains how to calculate quantity by substance and container type. The threshold is not a universal number for all dangerous goods. A single generic “10,000 L rule” would be misleading.

For example, the WA government licence application page says a site storing only combustible liquids has a 100,000 L licensing threshold. It also says the threshold becomes more than 10,000 L when combustible liquid storage shares a bund with flammable liquids or is adjacent to a flammable-liquid compartment in a multi-compartment tank. This example shows why a quantity-only answer fails: the physical arrangement can change the result. Check the precise current regulation and facts before applying either figure.

Also distinguish the placard quantity, manifest quantity and major-hazard facility threshold. These are different decision points. A site can have placarding and other storage duties without needing the particular site licence, and a high-volume site may require additional major-hazard-facility assessment or safety-report approval. WorkSafe's dangerous-goods licence overview lists these regimes separately.

Example: distribution depot with changing stock

A depot has a flammable-liquid store, an outdoor combustible-liquid tank and packaged corrosives. The operator should not add every litre together and compare the total with a threshold for one class. It should classify each product, map each storage location, calculate the applicable quantities under the WA regulations and test the effect of the tank's proximity to flammable-liquid storage. The peak delivery week is part of the analysis. If the result is close to a threshold, set an inventory control that warns the responsible person before a new delivery changes the licensing position. A generic chemical register can help maintain the facts; it does not make the legal determination automatically.

Check exemptions carefully

WorkSafe identifies specific circumstances where a site may exceed a manifest quantity yet not require this licence. One concerns multiple sub-manifest storage areas: each area must be below its manifest quantity, outdoors or in a separate building dedicated to the goods, and sufficiently separated that an incident in one cannot cause an incident in another. These are cumulative conditions, not permission to split a single store into spreadsheet rows.

Another concerns temporary storage or handling for no more than six months of no more than three times the manifest quantity, provided other conditions are met, including no manufacturing or processing and no major-hazard-facility status. WorkSafe says some operators should notify the Chief Dangerous Goods Officer using its temporary-storage form. The exemption is not a way to run a recurring permanent store under a series of six-month labels. Record dates, maxima, activities and the basis on which each condition is met. Recheck the statutory wording and any notification requirement for the actual site.

Do not assume that a low-volume exemption removes other safety duties. Classification, compatible storage, controls, emergency response and worker information may still be necessary. Likewise, the presence of an exemption for non-explosives does not answer a separate security-sensitive ammonium nitrate or explosives licensing question.

What should an operator prepare for an application?

The regulator's licensing requirements page describes site identification, risk assessment, emergency planning and other application material. The exact form and supporting documents depend on the site. An efficient preparation file normally includes:

1. A site description and plan. Show boundaries, storage and handling areas, tanks, process equipment, access, neighbouring premises and vulnerable off-site locations.
2. A classified inventory and quantity method. Identify goods, maximum quantities, container types and the calculation used for each threshold.
3. A risk assessment. Consider each dangerous good and installation, credible loss-of-containment events, ignition or reaction, exposure and escalation. WorkSafe says separate hazard identification and risk assessment should be undertaken for each dangerous good and installation.
4. Control evidence. Explain separation, containment, ventilation, ignition control, security, maintenance, inspection, training and management of change where relevant. Show what operates in practice.
5. An emergency plan. The regulator says a plan is required for all new applications and when an existing licence increases the quantity stored. It should address the dangerous situations associated with the site, not merely repeat a generic evacuation template.
6. Responsible-person and operational details. Name who maintains the inventory, approves changes, implements controls and keeps the licence current.

The current WA application pathway distinguishes a new licence, amendment and transfer. Do not assume a licence transfers automatically with a business sale, or that an increase in goods or major site change is covered without review. The government page says a site licence is issued for five years; the operator should calendar the actual expiry and any earlier amendment trigger on the issued document.

Make the risk assessment site-specific

“Flammable liquid—fire” is a hazard label, not a sufficient analysis of a depot. Examine delivery and decanting, hose failure, overfill, vapour accumulation, ignition sources, bund performance, vehicle movements and the effect on neighbouring premises. For corrosives, examine transfer points, incompatible storage and spill response. For oxidisers or reactive materials, test credible interaction with nearby goods. Use competent technical advice where engineering assumptions, separation distances or emergency modelling matter.

WorkSafe WA says the dangerous-goods risk assessment must be reviewed at least every five years, after a significant dangerous-goods incident, or when changed circumstances make it inapplicable, such as a changed storage system or new vulnerable off-site facility. That is a specific WA dangerous-goods review rule; it should not be presented as a universal WHS risk-assessment interval. The requirements guidance also describes emergency-plan review after significant risk or layout change, after a dangerous situation and at least every three years. Put the different dates and event triggers into separate review controls.

What happens after approval?

A licence is a continuing site obligation, not a one-off certificate in a folder. Keep the approved quantities and conditions accessible to people who order goods or modify equipment. Check receiving and inventory against licensed maxima. Investigate new products before they arrive. Review changes to tank capacity, process, layout, neighbouring land use and staffing. Keep inspection and maintenance evidence for critical controls, and practise the emergency arrangements appropriate to the site.

If the risk extends to an adjacent site, WorkSafe's requirements page describes an operator duty to give the occupier information about the risk, actions in a dangerous situation and contact details. Treat neighbouring-site coordination as an operational task rather than an appendix no one has read.

An incident, major expansion or change of operator can alter both the risk controls and licensing position. Record the change and check the regulator's amendment, transfer or notification process before assuming the original approval remains sufficient. Keep the next review date and renewal date separate: a five-year licence period does not mean every emergency plan waits five years for review.

Common mistakes

• Using one national WHS threshold table for a WA licensing decision. Check WA Schedule 1 and the current state guidance.
• Counting only purchased stock. Include process vessels, tanks, packages, pipelines and other goods actually present.
• Ignoring peak inventory. A short delivery surge may change the licensing position.
• Treating separated stores as automatically exempt. Every condition of the multiple-area exception must be satisfied.
• Calling a permanent store temporary. The six-month exception has factual and notification conditions.
• Confusing a register, manifest, site licence and MHF approval. Each serves a different legal task.
• Uploading an unexamined generic emergency plan. It must address credible site-specific dangerous situations.
• Forgetting changes after grant. Storage layout, quantity, product class and adjacent development can require renewed risk analysis or regulator action.

How can software support the work without deciding it?

The verified Complys AU chemical-register software can help keep a structured record of substances and supporting documents. A maintained register can make it easier to assemble inventory evidence and assign review ownership. The operator still has to establish the actual maximum quantity and location, interpret the WA regulations, prepare an adequate risk assessment, apply to the regulator and comply with licence conditions. The current product page does not establish automatic WA licence-threshold calculations, regulator submission, engineering assessment or licence approval.

If you are building a site file, begin with the regulator's licensing trigger guidance and application requirements. Use Complys for the supporting records only where its current configuration fits the site, and have a competent person verify the classification, threshold and application evidence before a licensable store operates.

For the related Complys product, see Chemical Register Software. This guide is general information, not legal advice; verify current requirements against the official sources linked above.