From Hazardous Substances to Safer Materials

What the New End-of-Life Vehicles Regulation Tells Us About Safe & Sustainable by Design

ECHA has begun work to support the implementation of the EU’s new End-of-Life Vehicles Regulation, including identifying substances of concern in vehicles and supporting future action on hazardous substances. For the automotive sector, this creates an immediate reason to look more closely at chemical composition. But the implications extend much further.

For manufacturers of complex articles, from vehicles and electronics to machinery, construction products and other multi-material systems, chemical sustainability is increasingly becoming a design and supply-chain issue rather than simply a downstream compliance exercise.

This is where Safe & Sustainable by Design (SSbD) can provide a useful framework.

Changing Regulatory Landscape for Vehicle Materials

The EU’s new Regulation on circularity requirements for vehicle design, and on management of end-of-life vehicles, entered into force in August 2026 and will apply from September 2028. It replaces the existing End-of-Life Vehicles Directive and the 3R type-approval Directive – creating a more comprehensive framework covering vehicle design, production, dismantling, reuse and recycling. The change reflects how much vehicles themselves have changed. Modern vehicles contain increasingly complex combinations of electronics, polymers, coatings, adhesives, batteries, functional materials and critical raw materials.

Against this background, ECHA announced in August 2026 that it will support the European Commission with the chemical-safety aspects of the new Regulation. Its work will include identifying substances of concern in vehicles, preparing restriction proposals for hazardous substances where requested, and assessing exemptions from existing prohibitions.

That is an important development for automotive manufacturers and their supply chains, but it also illustrates a much broader challenge.

Complex Products Create Complex Chemical Supply Chains

A manufacturer may have excellent visibility over the principal materials used in a product while having much less visibility over individual substances contained further down the supply chain.

Consider the range of chemical functions potentially involved in a complex manufactured article: plasticisers, flame retardants, stabilisers, surfactants, processing aids, pigments, coatings, adhesives, corrosion inhibitors and numerous other functional additives. The challenge is therefore not simply “does our product comply today?”. Increasingly, manufacturers also need to consider which substances in their materials portfolio could become problematic tomorrow; and what would they be replaced with?

This distinction matters as EU chemicals policy increasingly addresses substances of concern not only because of their potential effects on human health and the environment, but also because their presence can complicate circular material flows and clean recycling. The European Commission has explicitly identified substances of concern in products and waste as an obstacle to achieving non-toxic material cycles.

At the same time, chemical hazard assessment itself is evolving, the current ECHA CLP guidance encompasses established health and environmental endpoints alongside newer hazard classes including endocrine disruption and PBT/vPvB and PMT/vPvM properties. The environmental guidance, for example, now explicitly addresses persistence, bioaccumulation, mobility and toxicity alongside environmental endocrine disruption. For manufacturers managing large material inventories and complex supplier networks, waiting until a substance is restricted can therefore create significant technical and commercial risk.

Finding a Replacement is Not the Same as Finding a Better Alternative

Substitution sounds straightforward: identify a problematic chemical and replace it with something safer. In practice, it rarely is. A replacement must normally deliver the required technical function. But a substitute that removes one recognised hazard while introducing another – or creates substantially greater impacts elsewhere in its lifecycle – may simply represent regrettable substitution.

For example, potential alternatives may differ in:

• human-health and environmental hazard profiles
• persistence, mobility and bioaccumulation potential
• exposure during manufacture and downstream use
• emissions and environmental impacts associated with production
• resource and energy requirements
• implications for recycling or end-of-life treatment
• regulatory status and emerging regulatory scrutiny
• technical suitability for the required function

This is precisely the type of decision problem that SSbD is intended to support.

Moving From Substitution to Safe & Sustainable by Design

The European Commission’s revised SSbD framework, adopted through an updated recommendation in March 2026, provides a voluntary approach for steering innovation towards chemicals and materials that are safer and more sustainable across their lifecycle. Importantly, SSbD is not a replacement for regulatory compliance. The Commission describes the framework as complementary to legal requirements and as a means of supporting anticipatory decisions during innovation. Its objectives include supporting the substitution or minimisation of substances of concern while reducing health, climate and environmental impacts across sourcing, manufacture, use and end-of-life.

That makes SSbD particularly relevant when a business already knows that a chemical or material needs to change.

Instead of asking only “what can we use instead?”, an SSbD-informed assessment asks “which alternative provides the required function, while offering the best overall safety and sustainability profile, and where are the remaining uncertainties and trade-offs?”

Starting With Chemical Intelligence

For complex article manufacturers, however, substitution cannot begin until there is sufficient understanding of what is already present. An effective programme can therefore start with chemical and regulatory screening of the existing material portfolio. Depending on the available supply-chain information, this could include reviewing substance identities, formulations, Safety Data Sheets and supplier declarations and mapping substances against relevant regulatory and hazard information.

The objective is to develop a prioritised picture of chemicals that may warrant closer investigation. That may include substances already subject to regulatory controls, substances with hazardous classifications, substances displaying properties of emerging concern, or substances for which regulatory activity suggests that future scrutiny may be increasing. This type of exercise can turn a large and potentially unmanageable chemical inventory into a risk-based prioritisation tool. Rather than attempting to reformulate everything, manufacturers can identify where further investigation is most valuable.

Connecting Regulatory Foresight with Scientific Assessment

Blue Frog can support manufacturers at both sides of this challenge.

1. Identifying Potentially Problematic Substances

We can help businesses interrogate chemical inventories and supply-chain information to identify substances that may represent current or emerging regulatory concerns.

This can combine regulatory intelligence with scientific evaluation of hazard information, helping organisations distinguish between immediate compliance issues and substances that may warrant proactive investigation.

Where information is incomplete, we can also help identify the key data gaps and questions that need to be addressed with suppliers.

2. Prioritising Substances for Substitution

Not every chemical warrants the same level of attention.

A structured screening approach can consider factors such as hazard profile, regulatory status, potential exposure, use and function, lifecycle considerations and the availability of technically credible alternatives.

This enables resources to be directed towards substances and applications where substitution could deliver the greatest benefit or mitigate the greatest future risk.

3. Screening Potential Alternatives

Once candidate alternatives have been identified, Blue Frog can support comparative assessment from a scientific, regulatory and sustainability perspective. This could include evaluation of available toxicological and ecotoxicological data, physicochemical properties, environmental fate, classification implications and relevant regulatory status. Non-testing approaches can also form part of the evidence base where scientifically appropriate. ECHA’s CLP guidance, for example, recognises approaches including grouping, read-across and (Q)SAR within chemical hazard assessment.

The aim is not simply to identify an alternative that is different, but to build evidence that it represents a more informed choice.

4. Applying an SSbD Perspective

Safety is only part of the decision. The revised European SSbD framework emphasises consideration of safety and environmental sustainability across the lifecycle, with the assessment capable of being adapted according to the maturity of an innovation and the information available. Blue Frog Scientific can help organisations incorporate this thinking into alternatives assessment, combining our expertise in chemical hazard and regulatory science with broader sustainability considerations.

The result can be a transparent comparison of candidate alternatives, highlighting benefits, uncertainties and potential trade-offs rather than reducing a complex substitution decision to a single hazard classification.

From Reactive Compliance to Regulatory Resilience

The new End-of-Life Vehicles Regulation provides a particularly visible example of how product, chemicals and circular-economy policy are converging. But the underlying lesson applies well beyond automotive manufacturing. Complex products depend upon complex chemical supply chains. As regulators increasingly focus on substances of concern, circularity and lifecycle impacts, manufacturers that understand their chemical footprint will be better placed to anticipate change.

SSbD provides an opportunity to go one stage further: using that knowledge not simply to respond to restrictions, but to guide better material and substitution decisions before regulatory pressure makes those decisions urgent. The objective is not to predict exactly which substance will be regulated next. It is to create a more resilient approach to chemical and material selection, one that considers regulatory direction, scientific evidence, safety, sustainability and functionality together.

Early Stage Regulatory-Led SSbD Assessment

Blue Frog provides scientific and regulatory consultancy supporting chemicals and complex material assessments.

We can help organisations to:

• map and screen chemicals within products and supply chains.
• identify substances presenting current or potential future regulatory concern.
• evaluate toxicological, ecotoxicological and environmental-fate information.
• prioritise substances for further investigation or substitution.
• scientifically screen and compare potential alternatives.
• identify important evidence gaps and uncertainties.
• integrate regulatory and chemical-safety assessment into a broader Safe & Sustainable by Design strategy.

For manufacturers facing increasingly complex expectations around chemical safety, sustainability and circularity, early assessment can turn regulatory uncertainty into an opportunity for better-informed innovation.

If you're reviewing substances within your products or considering alternatives to chemicals of concern, contact Blue Frog to discuss how a regulatory-led SSbD assessment could support your materials strategy.