Australia Expands PFAS Bans and Life-Cycle Restrictions Under Major IChEMS Register Update

Overview

Australia’s Department of Climate Change, Energy, the Environment and Water (DCCEEW) has issued the Industrial Chemicals Environmental Management (Register) Amendment (2026 Measures No. 1) Instrument 2026, a major federal regulatory instrument that revises the national Industrial Chemicals Environmental Management Standard (IChEMS) Register. Published on 6 July 2026, the amendment adds 21 new chemical entries and amends two existing ones across multiple scheduling tiers. The changes impose life-cycle controls ranging from outright prohibition through to mandatory transition planning, with a uniform compliance date of 1 January 2027. For the contaminated land, waste management, and environmental consulting sectors, this is one of the most substantive federal chemical scheduling actions taken since the original IChEMS Register was established under the Industrial Chemicals Environmental Management (Register) Act 2021 (Cth).

The update targets a broad suite of per- and polyfluoroalkyl substances (PFAS) alongside several non-PFAS industrial compounds. Critically, it moves beyond the well-known long-chain PFAS (PFOS and PFOA) that regulators have focused on for over a decade and captures shorter-chain and structurally related PFAS that industry has increasingly used as substitutes. This directly addresses what regulators and scientists have termed “regrettable substitution” — the pattern of replacing a banned persistent chemical with a structurally similar alternative that carries its own persistence and toxicity profile. The scheduling of PFBA, PFPeA, and PFHxA under Schedule 4, and the outright banning of PFHpS, PFNS, and PFDS under Schedule 7, signals that federal regulators are no longer accepting the substitution argument at face value.

For developers, landowners, manufacturers, and their legal and environmental advisors, the practical consequences extend well beyond supply chain compliance. Sites where these chemicals have been used, stored, or disposed of will attract heightened scrutiny under state contaminated land frameworks. Waste classification pathways, landfill leachate criteria, and trade waste agreements will all need to be reviewed in light of newly scheduled compounds that were previously unregulated or only informally managed at the state level. The 1 January 2027 deadline is shorter than many project and transaction cycles, making early action essential.

Key details of the IChEMS Register Amendment 2026

The amended IChEMS Register employs a tiered scheduling system under the Industrial Chemicals Environmental Management (Register) Act 2021 (Cth). Schedule 7 represents the highest tier, applying to substances considered likely to cause serious or irreversible environmental harm with no essential uses justifying continued supply. The 2026 amendment adds four substances to Schedule 7: perfluoroheptanesulfonic acid (PFHpS), perfluorononanesulfonic acid (PFNS), perfluorodecanesulfonic acid (PFDS), and 2,4,6-tri-tert-butylphenol (TTBP). For these chemicals, the manufacture, import, export, and use are prohibited from 1 January 2027. Unintentional trace contamination (UTC) limits have been set as enforceable ceilings rather than aspirational targets. For PFHpS and its salts, the UTC limit is 0.025 mg/kg (25 µg/kg). For PFHpS-related compounds (a broader grouping that includes precursors and transformation products), the UTC limit is 1 mg/kg. These are concentration limits in chemical products and articles, not environmental guideline values, but they establish the regulatory baseline against which product compliance will be assessed.

Schedule 5 restricts substances to essential uses only, requiring that any continued supply be justified against a demonstrable need with no practicable alternative. The 2026 amendment places perfluoroheptanoic acid (PFHpA), perfluoropentanesulfonic acid (PFPeS), 6:2 fluorotelomer sulfonamides, and tetrabromobisphenol A (TBBPA) in this tier. TBBPA is a brominated flame retardant with established aquatic toxicity and persistence, while the PFAS entries in Schedule 5 are shorter-chain sulfonates and carboxylates that have been identified as environmental transformation products of longer-chain precursors. The inclusion of 6:2 fluorotelomer sulfonamides is particularly significant because this compound class has been widely used in firefighting foam formulations promoted as PFOS-free alternatives.

Schedule 4 requires that users develop and formally document transition strategies to phase out use of the listed chemicals. This is a legally mandated planning obligation, not a voluntary commitment. The substances added to Schedule 4 include PFBA (perfluorobutanoic acid), PFPeA (perfluoropentanoic acid), PFHxA (perfluorohexanoic acid), limonene, parabens, and short-chain alkyl- and aryl-phthalates. The short-chain PFAS in this tier are the compounds most commonly proposed by industry as replacement chemistries for longer-chain PFAS in surface coatings, mist suppressants, and processing aids. Their placement in Schedule 4 effectively forecloses the substitution argument: companies cannot transition from a Schedule 7 PFAS to a Schedule 4 PFAS and consider the matter resolved. They must document a transition pathway away from the Schedule 4 substance as well. Schedule 3 (potential to cause harm) receives fatty acids and medium and long chain alkyl sulfates, while Schedule 2 (unlikely to cause harm) receives glycerides.

The non-PFAS additions to the register are also noteworthy. TTBP (2,4,6-tri-tert-butylphenol) is a phenolic antioxidant used in lubricants and fuel additives that has demonstrated aquatic toxicity. Parabens are preservatives widely used in personal care and industrial products. Phthalates in the short-chain category are plasticisers with established endocrine disruption profiles. The inclusion of these non-PFAS compounds signals that the IChEMS Register is expanding its focus beyond fluorinated chemistries to a wider range of persistent and bioactive industrial substances — an indication that future scheduling rounds are unlikely to be confined to PFAS alone.

References and related sources

• Primary source: www.sgs.com
• chemlinked.com
• enviliance.com
• dcceew.gov.au
• wsaa.asn.au
• PFAS National Environmental Management Plan (NEMP)

How iEnvi can help

iEnvi provides specialist consulting services relevant to this topic. Our team includes CEnvP Site Contamination Specialists with experience across contaminated land, groundwater, remediation, ecology, and regulatory compliance.

• iEnvi site assessment services
• iEnvi remediation and validation services
• iEnvi expert services and independent review services

This is an iEnvi Machete news summary. Prepared by iEnvi to summarise the source article for contaminated land, groundwater, remediation, approvals and site risk professionals.

Published: 13 Jul 2026

Need advice on this topic? Speak to an iEnvi expert at info@ienvi.com.au or 1300 043 684, or contact us online.