6PPD

US Senate Introduces 6PPD Task Force Bill on Salmon and Environmental Impacts

In April 2026, a US Senate bill (S.4325) was introduced to create a federal task force studying the impacts of 6PPD and its byproduct 6PPD-Q on coho salmon and the environment, and to promote research and funding for safer alternatives. Although still at proposal stage, this elevates 6PPD/6PPD-Q as a federal environmental priority and could drive future restrictions or funding programmes, so companies using these chemistries should track the bill’s progress and plan for potential substitution.

23 Apr 2026, 12:24congress.govUnited States

Great Britain HSE Agency Opinion Proposes GB Mandatory Classification and Labelling for 6PPD (N-1,3-Dimethylbutyl-N'-Phenyl-p-Phenylenediamine)

In March 2026 the UK HSE issued an Agency Opinion proposing a GB mandatory classification and labelling for 6PPD as a reproductive toxicant, skin sensitiser and very toxic aquatic substance. If adopted, this GB MCL will align 6PPD’s status with the EU, drive relabelling and SDS updates, and could trigger future UK REACH restrictions or SVHC listing that tyre, rubber and lubricant supply chains need to anticipate.

22 Apr 2026, 16:49hse.gov.ukUnited Kingdom

EU Intention to Restrict 6PPD and Related PPDs in Rubber Tyres

Netherlands and Austria have formally notified an EU REACH restriction intention targeting 6PPD and related PPDs used in rubber tyres and potentially other rubber goods, with the Annex XV dossier expected by March 2027. This gives tyre and rubber supply chains a clear timeline for a likely 6PPD phase-out proposal and signals the need to assess dependence on this antidegradant and plan safer alternatives ahead of the formal restriction draft.

22 Apr 2026, 12:24chem.echa.europa.euEuropean Union

US EPA Proposes Extension of TSCA Section 8(d) Health and Safety Data Reporting Deadline to 21 May 2027

The US Environmental Protection Agency has proposed extending the TSCA section 8(d) health and safety data reporting deadline for 16 specified chemicals by one year to 21 May 2027, with public comments due by 29 April 2026. If adopted, this will temporarily ease immediate reporting burdens while EPA reworks the rule, but chemical manufacturers and petroleum refiners should use the additional time to organise data and prepare for eventual submissions under the revised timeline.

21 Apr 2026, 12:48federalregister.govUnited States

EU And US Consider Restrictions On Tyre Additive 6PPD Over Salmon Toxicity

EU REACH restriction efforts and an imminent US court ruling are converging on a potential ban of the tyre antioxidant 6PPD. Manufacturers must accelerate the validation of safer alternatives to mitigate litigation risk and ensure continued market access for tyre products.

7 Apr 2026, 08:45sciencelink.netEuropean UnionNetherlandsAustriaUnited States

US EPA Proposes One-Year Extension of TSCA Section 8(d) Health and Safety Data Reporting Deadline

The US EPA has proposed a one-year extension to May 2027 for mandatory health and safety data reporting on 16 high-priority chemical substances. This delay provides temporary compliance relief while the agency re-evaluates reporting requirements, signaling potential future shifts in data submission obligations for these major industrial chemicals.

30 Mar 2026, 15:05federalregister.govUnited States

EU ECHA Extends Deadline For Call For Evidence On PPDs In Rubber Tyres

ECHA has extended the consultation period for the potential restriction of phenylenediamines in rubber tyres until March 2026. This extension allows the automotive and chemical sectors to submit evidence on alternatives and usage to mitigate the risk of disruptive supply chain mandates.

17 Feb 2026, 14:07echa.europa.euEuropean Union

Stakeholder Workshop On PPD Restriction Scheduled For 24 March 2026

EU authorities are progressing toward a formal REACH restriction on PPD antioxidants with a critical stakeholder evidence review scheduled for March 2026. This advancement signals a shift toward mandatory phase-outs for tire-related chemicals, requiring manufacturers to accelerate the technical validation of safer alternatives to mitigate future supply chain risks.

12 Feb 2026, 19:08chemischestoffengoedgeregeld.nlEuropean UnionNetherlands

West Virginia Introduces SB 475 on Science-Based Rulemaking for Chemicals of Emerging Concern

West Virginia introduced SB 475 in January 2026 to prohibit state agencies from establishing chemical safety standards more stringent than federal regulations. This regulatory ceiling approach limits state-level oversight of emerging contaminants like PFAS and 6PPD, prioritizing federal alignment and increasing the evidentiary burden for independent state action.

20 Jan 2026, 15:21wvlegislature.govUnited States

Washington Bill Proposes 6PPD Tyre Restrictions and Mitigation Fees

Washington State has proposed legislation to ban 6PPD in tires by 2035 and introduce escalating mitigation fees on 6PPD-containing products starting in 2027. This move accelerates the transition to safer tire chemistries and establishes a financial liability model for manufacturers to address chemical-driven environmental impacts.

14 Jan 2026, 20:14lawfilesext.leg.wa.govUnited States

Austria and Netherlands Launch Call for Evidence on PPDs in Rubber Tyres

Austria and the Netherlands have initiated a REACH call for evidence to support a restriction proposal on PPD antioxidants in rubber tyres, with a deadline of February 2026. This move signals an impending regulatory phase-out of 6PPD, requiring tyre manufacturers to immediately prioritize substitution research and provide socio-economic data to shape the scope of future restrictions.

18 Dec 2025, 07:30echa.europa.euAustriaNetherlands

US EPA to Reconsider TSCA Section 8(d) Reporting Rule for 16 Chemicals

US EPA has initiated a reconsideration of the TSCA Section 8(d) reporting rule for 16 chemicals to potentially introduce new exemptions and reporting thresholds. This pause in litigation provides a strategic opportunity for industry to influence the scope of data submission requirements and lookback periods ahead of the 2026 compliance deadline.

17 Dec 2025, 16:34epa.govUnited States

Austria Concludes Substance Evaluation for 7PPD with Restriction Proposal

Austria has concluded the REACH evaluation for 7PPD, recommending an EU-wide restriction due to high aquatic and reproductive toxicity. The potential for a group-wide restriction on para-phenylenediamines requires the rubber and automotive industries to accelerate substitution planning and supply chain mapping.

22 Oct 2025, 09:41echa.europa.euEuropean Union

Study Finds PFAS 6-PPD-Q and Microplastics in Sewer Overflows

A recent study confirms high levels of PFAS, tire-wear chemicals, and microplastics in urban sewer overflows, identifying them as major environmental pollution pathways. This evidence strengthens the case for more stringent wastewater discharge standards and increases liability risks for manufacturers regarding product-related environmental leaching.

6 Aug 2025, 11:55nature.comGlobal

Prioritisation and Risk Screening of Tyre Additives in the UK

The UK Environment Agency has identified 43 tyre additives, including 6PPD-quinone, as high-priority environmental risks following a comprehensive screening. This prioritisation signals forthcoming regulatory pressure and potential restrictions under UK REACH, requiring manufacturers to assess supply chain exposure and alternative chemistries.

18 Jul 2025, 10:39gov.ukUnited Kingdom

Proposed Amendment to REACH Restrictions Roadmap Adds PPD and Removes THF

The European Commission has expanded the REACH Restrictions Roadmap to include 6PPD for tire and rubber applications while removing tetrahydrofuran from the immediate regulatory pipeline. Companies must anticipate stricter compliance requirements for tire additives and prepare for upcoming restrictions on CMR substances in childcare articles and flame retardants in consumer goods.

4 Jul 2025, 08:46circabc.europa.euEuropean Union

Identification of New Priority Consumer Products Under Safer Products for Washington Cycle 2

Washington State has finalized nine new priority product categories for potential chemical restrictions, including packaging, cosmetics, and paints, under Cycle 2 of the Safer Products program. Manufacturers should prepare for a multi-year regulatory trajectory targeting PFAS, heavy metals, and siloxanes, with draft restrictions or reporting requirements expected by late 2026.

16 Jun 2025, 18:44eping.wto.orgUnited States

Extended Deadline for TSCA 8(d) Reporting of 16 Chemical Substances

The EPA has unified and extended the deadline for manufacturers to submit health and safety studies for 16 high-priority chemicals to May 2026. This extension provides a critical window for companies to audit internal data and prepare submissions that will shape future federal risk evaluations and potential use restrictions.

5 Jun 2025, 15:53epa.govUnited States

CARACAL-54: New Harmonised Classifications Proposed under 24th ATP

The European Commission is advancing the 24th Adaptation to Technical Progress to the CLP Regulation, proposing new harmonised classifications for substances including lithium salts and tea tree oil. These classifications will mandate updated product labeling and safety data sheets while potentially triggering broader restrictions under REACH and sectoral safety legislation.

8 Apr 2025, 18:18circabc.europa.euEuropean Union

New EU Watch List for Water Policy Monitoring Under Directive 2008/105/EC

The European Commission has updated the surface water monitoring watch list, adding or retaining substances including pharmaceuticals, pesticides, and UV filters like oxybenzone and octocrylene. Inclusion signals potential future classification as priority substances, likely leading to stricter discharge limits and downstream restrictions for manufacturers and users of these chemicals.

3 Mar 2025, 10:03eur-lex.europa.euEuropean Union