IChEMS explained for Australian chemical and PFAS compliance
IChEMS sets Australia's environmental standards for industrial chemicals. Check its seven schedules, PFAS restrictions, entry dates and implementing laws.
IChEMS means Industrial Chemicals Environmental Management Standard, Australia's national framework for managing environmental risks from industrial chemicals. Its register assigns chemicals to seven schedules and sets risk-management measures, with legal effect supplied by implementing laws. NSW EPA explains the framework.
For importers, manufacturers and formulators, the task is to connect a chemical's entry to the activity and jurisdiction. PFOS, PFOA and PFHxS have Schedule 7 entries effective from 1 July 2025, subject to defined exceptions. Those entries do not ban every PFAS. Read their scope in the IChEMS Register Instrument.
What the IChEMS framework covers
IChEMS addresses the import, manufacture, export, use and disposal of industrial chemicals. Its measures cover safe use, storage, handling and disposal. Industrial uses are distinguished from uses under agricultural and veterinary, therapeutic-goods and food-safety regimes. Start with the chemical's use, rather than assuming that every use falls within the same system. NSW EPA's guidance describes this scope.
The Industrial Chemicals Environmental Management (Register) Act 2021 establishes the intergovernmental framework. It commenced on 27 March 2021. That date does not tell you when an individual chemical's measures took effect. The Act's commencement table and the chemical's register entry answer different questions.
Section 4 makes a legal distinction that businesses need to retain. The Register Act does not itself create prohibitions, restrictions or obligations enforceable in proceedings. Another Commonwealth or state law can apply or adopt the register. A national scheduling decision therefore needs to be read alongside the law that gives it effect. See sections 3–4 of the Act.
NSW provides one example. It implements the register through Part 9.3E of the Protection of the Environment Operations Act 1997. The EPA says relevant businesses must comply, with penalties and licensing requirements potentially applying. That example does not establish identical enforcement arrangements elsewhere. Check the applicable regulator and implementing law for your activity. NSW EPA sets out its arrangements.
The seven IChEMS schedules
The schedules group chemicals by environmental harm and, for Schedules 6 and 7, essential uses. The following descriptions follow the headings in the Register Instrument.
| Schedule | Description |
|---|---|
| 1 | Chemicals not appropriate for listing in the other schedules |
| 2 | Unlikely to cause environmental harm |
| 3 | Potential to cause environmental harm |
| 4 | May cause environmental harm |
| 5 | Likely to cause environmental harm |
| 6 | Likely serious or irreversible environmental harm, with essential uses |
| 7 | Likely serious or irreversible environmental harm, with no essential uses |
Schedule 1 is a residual category, not simply the lowest-hazard tier. Nor does Schedule 7's heading mean that every entry has no exceptions. The chemical's entry contains the measures and exceptions that determine the practical position. Use the schedule to locate the relevant category, then read the full entry.
What IChEMS means for PFAS
The PFOS, PFOA and PFHxS entries took effect on 1 July 2025. They restrict import, export, manufacture and use, whether the chemicals occur alone, in mixtures or in articles. Each entry has its own defined scope and exceptions. These are restrictions on specified PFAS classes, rather than a blanket prohibition covering the entire PFAS group. See Schedule 7.
A check against three parent-substance names is insufficient. The entries also cover defined salts and related compounds or precursors. PFOA has express exclusions. For a formulation review, compare the substance information with the entry's full definition. A single CAS match does not settle whether all ingredients fall outside the entry. The instrument's chemical definitions control that assessment.
Existing articles and other exceptions
Exceptions include unintentional trace contamination, research or laboratory purposes, authorised hazardous-waste import or export, and continued use of qualifying existing articles. Their conditions matter. In particular, the existing-article wording is “already in use on or before 1 July 2025”. Stock merely available for sale does not meet that wording on that basis alone. Check the relevant Schedule 7 entry before relying on an exception.
Unintentional trace contamination
The entries specify limits of ≤0.025 mg/kg for the parent substance and its salts. They specify ≤1 mg/kg for an individual related compound or a combination of related compounds. These are unintentional trace contamination limits, not permission to deliberately add the chemicals. Read the conditions in the Register Instrument.
Specified already-installed Class B firefighting foam systems have separate parent-substance and salt limits: ≤0.8 mg/kg PFOS, ≤0.8 mg/kg PFOA and ≤0.1 mg/kg PFHxS. Do not apply those limits to products generally. The trace thresholds must be reviewed by 1 July 2027. That review deadline does not itself set a new limit or automatically end an exception. Both points appear in the individual entries.
Waste needs a separate check. The entries prohibit dilution to evade thresholds and require environmentally sound management and disposal. They also contain destruction or irreversible-transformation provisions, with a stated alternative where that is not environmentally preferable. Non-permitted stockpiles trigger notification and waste-management provisions. Product trace limits are not a substitute for these waste requirements.
How AICIS recommendations feed into IChEMS
An AICIS assessment or recommendation is not itself an IChEMS prohibition. Section 7 of the Register Act recognises assessment and evaluation statements under the Industrial Chemicals Act 2019 as Commonwealth risk assessments. Section 15 requires the scheduling decision-maker to consider the relevant assessment, using the most recent where several exist. The assessment informs a separate scheduling decision. See sections 7 and 15.
For a compliance review, follow the recommendation through to the final register entry. Then check its effective date and the applicable implementing law. Stopping at the recommendation leaves those questions unanswered. This sequence follows the distinction between assessments, decisions and enforcement in the Register Act.
Adopted changes taking effect in 2027
As of 6 November 2026, some adopted entries remain future-effective. The 2025 amendment added a Schedule 6 entry for DBDPE, effective 1 January 2027, with specified essential uses and phase-out dates. The same amendment set 1 July 2026 as the effective date for its mercury and mercury-compound entry. These dates illustrate why an amendment's commencement cannot replace an entry-level check. See the 2025 amendment.
The June 2026 amendment added Schedule 7 entries for PFHpS and PFNS/PFDS classes, effective 1 January 2027. At this article's date, these are adopted future-effective entries, not consultation proposals or already-effective entry requirements. Check the June 2026 amendment when planning affected activities.
Checking a chemical before a compliance decision
Use the register entry and the Register Act framework to work through these questions:
- Does the chemical fall within the entry's definition, including salts and related compounds?
- Which activity is involved: import, manufacture, export, use or disposal?
- Has the entry taken effect, and does an exception cover the specific circumstances?
- Which jurisdiction's law gives the measures legal effect?
- Do stockpile or waste requirements apply separately?
Before relying on an entry, check for later amendments and confirm which requirements apply on your planned activity date. Keep a copy of the entry and the implementing law used for your review. Record the exception relied on, rather than only the schedule number.
RegAffairs AI's answer on IChEMS and Australian PFAS controls provides a question-led explanation.