Guidance

Guides to changes

The quick guide provides information on the key changes introduced by the Health and Safety at Work (Hazardous Substances) Regulations 2017.

Your practical guide to working safely with hazardous substances

This practical guide provides information on how to manage hazardous substances in your workplace safely.

How to use the quantity-ratio sum (QRS) to work out whether a workplace requires a ‘hazardous substance location’ (HSL) or a location compliance certificate (LCC)

For PCBUs to work out, based on the hazardous substances they use, make, or hold: whether they require a ‘hazardous substance location’ (HSL), or whether they will need a location compliance certificate (LCC).

Industry guidance

Find useful industry-specific guidance. These will be updated over time to reflect the Hazardous Substances Regulations.

Substances

Find useful substance-specific guidance. These will be updated over time to reflect the Hazardous Substances Regulations.

HSNO codes of practice for hazardous substances

Codes of practice approved under the HSNO Act continue to provide useful information.

Hazardous substances that activate key safety controls

This guide gives you a summary of the amounts (thresholds) of substances with certain classifications that activate a particular control.