HSNO Location Test Certificates: The Current New Zealand Location Compliance Process

People still search for an HSNO location test certificate, but current New Zealand workplace guidance calls it a location compliance certificate (LCC). The transition from older HSNO test-certificate terminology to the Health and Safety at Work (Hazardous Substances) Regulations 2017 did not make the underlying need to verify certain hazardous substance locations disappear. WorkSafe says a location compliance certificate may be required when specified explosive, flammable, oxidising, toxic or corrosive substances are present above applicable quantity thresholds. The correct decision depends on classification, quantity, location, storage/use circumstances and combined substances. WorkSafe location compliance certificates; WorkSafe transitional arrangements.

The current term is “location compliance certificate”

This is a New Zealand guide for a person conducting a business or undertaking (PCBU). It is not a certificate, a threshold calculator or advice that a specific workplace passes inspection. Use the official WorkSafe Hazardous Substances Calculator and an authorised compliance certifier for the site-specific determination.

When might a certificate be needed?

WorkSafe gives examples such as more than 100 kg LPG or more than 50 litres petrol at one location, but these examples do not cover every classification, storage arrangement or combination. A substance below its individual example threshold may still contribute to a combined quantity-ratio calculation with other substances. For some toxic and corrosive substances, the nature and duration of storage matter. Avoid copying one number from an example and applying it to a different product, hazard class or workplace. WorkSafe LCC guidance; WorkSafe QRS guidance; WorkSafe toxic/corrosive location guide.

The official calculator helps users build an inventory and identify key controls, including whether location certification may be triggered. WorkSafe warns that its calculator does not cover every control under the hazardous-substances and HSNO rules or local council rules. Treat the result as a strong input to the dutyholder's assessment and certifier discussion, not a universal compliance verdict. Official calculator and disclaimer.

Prepare an accurate inventory first

List every hazardous substance used, handled, made or stored at the workplace, including relevant hazardous waste. For each, gather the current SDS, product name, HSNO approval/group-standard information, classification, maximum likely quantity, location and storage conditions. Note open versus closed containers, incompatibilities and what is held in separate locations. The WorkSafe inventory guidance explains why an up-to-date inventory is essential for workers, emergency responders and certifiers.

Entering only what happens to be on a shelf today may understate the maximum amount the location is designed or likely to hold. Recheck whenever product, quantity, layout or use changes.

Check the official calculator and the certifier's scope

Enter the substances with their full classification and quantities into WorkSafe's calculator. Its quick guide explains searching by HSNO approval number, product name, group standard or other appropriate data, and using separate inventories for open and closed containers when prompted. Retain the output as a working record, then review what controls it flags and which rules require separate attention. Official calculator; calculator quick guide.

If a certificate is needed, engage a WorkSafe-authorised compliance certifier whose authorisation covers the relevant location and substance classifications. WorkSafe says certifiers are independent and charge for their work; the PCBU should discuss the site, substances, evidence and fee before inspection. The certifier verifies prescribed requirements and decides whether to issue the certificate. Complys, a generic software provider or the official calculator cannot issue one. WorkSafe certification of sites; WorkSafe LCC guidance.

What should the location be ready to demonstrate?

The exact requirements vary by substance and site. Prepare evidence on the inventory and SDSs, layout and separation, containers, signage, fire and emergency arrangements, secondary containment where applicable, worker information, and any relevant equipment certificates. Ask the certifier for a requirement list for the classifications involved. A compliant store for one substance or quantity is not automatically suitable after another product is added.

WorkSafe notes that a new hazardous substance location generally must be notified before commissioning, with its current page setting a 30-working-day notice period and a different five-working-day rule for LPG locations. The notification procedure and online form should be checked immediately before use; do not confuse notifying a new location with obtaining the location compliance certificate. WorkSafe LCC page.

Validity and changes

WorkSafe says a certificate for explosive, flammable and oxidising substances is generally issued for one year, with possible extension to three years where requirements are met. It describes up to three years for toxic and corrosive substances, or under 300 kg LPG, subject to the specific case. Do not put one automatic renewal date on every certificate. Record the actual expiry and any conditions, and talk to the certifier if the location, substances or quantities change. WorkSafe LCC guidance.

Example: adding flammable products to an existing store

A workshop has a chemical inventory and a small flammable-liquids cabinet. It plans to keep extra petrol and solvent for a new contract. The manager updates maximum expected quantities, SDSs and location details, runs the official calculator and checks combined classes. If the location-certificate trigger is reached, it engages an authorised certifier before treating the expanded store as approved. It also reviews separation, containment and emergency arrangements. An old certificate for a different inventory is not proof the changed location is covered.

Frequent mistakes

• Searching for an old “HSNO test certificate” and assuming no current certificate is required.
• Applying a single threshold example to every product or separate/combined location.
• Using only present stock, omitting maximum likely quantities or hazardous waste.
• Assuming the official calculator is a complete legal assessment of every control.
• Treating a certificate for one layout/classification as approval for later changes.
• Confusing a new-location notification with certification by an authorised person.
• Saying software can issue or replace a WorkSafe compliance certificate.

Complys and the next step

The observed Complys New Zealand site is the verified NZ host. An exact /nz/hazardous-substances-software money-page owner could not be independently fetched, and the NZ homepage contains cross-jurisdiction template claims, including Garda vetting and “RAMS” language, that require whole-page review. Do not route a legal call to action through unverified product or host-page claims. Use the official WorkSafe calculator and contact an authorised compliance certifier. A future Complys inventory or expiry-reminder link needs proof of its actual NZ implementation and a clean destination page.

Sources, ownership and writer-side QA

Primary sources: WorkSafe LCC; certification of sites; official calculator; WorkSafe inventory; WorkSafe QRS guidance. Reviewed 6 October 2026. Threshold examples and validity are attributed and qualified; no site verdict or certificate asserted.

Owner boundary: No exact live Complys NZ location-certificate guide observed. The official calculator owns threshold calculation (N5-474 was rejected); this guide owns terminology, process and certifier decision support. Final repository/gated owner and exact proposed route check required. Disposition: READY writer-side, with host/product publication gate open.