Making a secondary notification enquiry to NICNAS

When to notify us

You must notify us when you become aware of a significant change in circumstances relating to a new or existing chemical that we assessed.

You are responsible for informing us of any significant changes from those outlined in the original assessment report of the chemical. You must do so within 28 days of becoming aware of such a change. The purpose is so that we can determine whether a secondary notification is required.

These obligations apply regardless of the status of a chemical on the Inventory (listed or not yet listed).

Examples of significant changes where you must tell us about your introduction

Any change that may increase occupational health and safety, public health or environmental risks.

  • A significant new use of the chemical which may:
    • increase the potential for human exposure (for example, increased concentrations in consumer products)
    • increase environmental exposure
    • change the type of exposure (for example, from dermal exposure to inhalation or a chemical initially used as a catalyst in a chemical reaction may later be used as a metal cleaning agent).
  • A significant increase in the quantity of chemical imported or manufactured (for example, a tonnage increase from 1 to 10 tonnes/year or from 50 to 500 tonnes/year).
  • A significant increase in quantity that may lead to a change in the type of exposure (for example, the method of disposing large quantities may be different from the method of disposing small quantities).
  • If the chemical was originally assessed as an imported product but you are planning to manufacture in Australia.
  • You are importing more than 1 tonne of a chemical that was originally notified as a LTD (<1 tonne).
  • A polymer originally notified as a PLC that no longer meets the PLC criteria.
  • A change in manufacturing method, which may lead to increased risk by:
    • changing from a closed process to an open system
    • using different raw materials
    • using different processing conditions
    • increasing the number of workers required to deal with the chemical
    • changing the type of exposure
    • changing the method of waste disposal
    • increasing the environmental exposure
  • New information on the chemical's potential hazardous properties that have been identified since initial assessment (for example, it may become known that the chemical is carcinogenic).

If in doubt on whether a secondary notification is required, contact us for advice.

Determination process and calling for secondary notification

We will assess the information you provide on a significant change and any other information of which we become aware, to determine if reassessment and a secondary notification is required.

If we decide secondary notification is required, a notice will be placed in the Chemical Gazette, addressed to a specific notifier (usually selected importers and manufacturers) or to everyone who imports or manufactures the chemical.

The Director may also contact persons who may have information that can help with the secondary assessment. In these cases, the Director will give notice in the Chemical Gazette to other selected importers and manufacturers of the chemical, asking them to submit information on the changed circumstances that prompted the Secondary Notification.

By taking into account the change in circumstances and the impact they will have on occupational health and safety, public health and the environment, the notice will specify the data items in the schedule where information must be provided. For example, a significant new use of the chemical may lead to a revised occupational health and safety assessment or additional toxicity data being required.

Applying for secondary notification

You must:

  • include all available information specified in the Chemical Gazette notice
  • provide all documents supporting the secondary notification in English.

Chemicals NOT on the Inventory

Download New Chemical Secondary Notification Application (Form SN-1) (fee applies)

Chemicals on the Inventory

Download Existing Chemical Secondary Notification Application (Form 1A-SN) (no fee)

Secondary notification applications (new chemicals) and related forms—apply now

Secondary notification applications (existing chemicals) and related forms—apply


You can request certain content confidential (meaning it will not be published), as long as you justify your request.

Learn more about confidentiality

Last update 31 July 2019