REACH Restrictions Roadmap Update Targets 6PPD And Removes THF

Dr Steven Brennan
Dr Steven Brennan
2 min readAI-drafted, expert reviewed
Car tyres

Key takeaway

What This Development Means

The EU’s updated REACH Restrictions Roadmap targets 6PPD for restriction while shelving plans for THF. Presented at CARACAL 55, these changes underscore increasing scrutiny on persistent and toxic chemicals in consumer and industrial use.

Why has 6PPD been added to the REACH Restrictions Roadmap?

6PPD is linked to aquatic toxicity and potential reproductive harm. Its widespread use in tyres has raised concerns about leaching and environmental impact, prompting regulators to propose restrictions under REACH.

What does the removal of THF mean for companies?

Germany’s reassessment concluded that THF in consumer products posed limited risk. Its removal from the roadmap means no immediate restriction, but companies should monitor classification updates and maintain safety measures.

Source basis: https://circabc.europa.eu/ui/group/a0b483a2-4c05-4058-addf-2a4de71b9a98/library/59048b7e-c267-42dc-9bc5-ba5973ceec68/details

A proposed amendment to the REACH Restrictions Roadmap was presented by the European Commission at CARACAL 55 on 30 June 2025. The draft includes the addition of N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine (6PPD) to Annex I (Pool 0, entry 6.2) and the removal of tetrahydrofuran (THF) from Annex II (entry 1.11). These proposed updates reflect shifting regulatory priorities under the EU’s Chemicals Strategy for Sustainability and have direct implications for manufacturers, importers, and downstream users.

What Is Being Proposed In The REACH Update?

Under the proposal, 6PPD—a chemical antioxidant used in rubber tyres—is slated for inclusion due to concerns over aquatic toxicity and reproductive risks. The Netherlands and Austria support the restriction, which could apply to rubber tyres and other rubber products. If agreed, the restriction dossier would be submitted to ECHA in Q1 2026.

Conversely, Germany has proposed to withdraw THF from consideration for restriction, citing minimal consumer exposure and limited use in DIY applications. This decision follows a re-evaluation of risk based on additional data.

Regulatory And Industry Implications

If formalised, the 6PPD restriction could have widespread implications for the automotive and rubber sectors, necessitating reformulation, product redesign, or substitution. It also sets a precedent for the treatment of tyre-related chemicals under REACH.

While the removal of THF lowers short-term regulatory pressure, industry should remain alert to future developments, especially regarding classification and labelling revisions.

Next Steps And Industry Response

The CARACAL 55 discussion marks the initial step in the decision-making process. Should the proposed amendment be adopted, a restriction dossier for 6PPD will be formally registered. Stakeholders should prepare for public consultation phases and begin assessing supply chain impacts.

For now, THF will no longer be actively considered for restriction, although safety monitoring continues under other regulatory pathways.

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