EU Chemicals Strategy for Sustainability: Restructures EU chemicals regulation through hazard-based controls, “safe and sustainable by design” requirements

What’s Required

The Chemicals Strategy for Sustainability establishes a systemic regulatory transition rather than a single compliance obligation. Its requirements materialise through binding legal changes across multiple instruments, creating cumulative and escalating obligations for companies.

1) Shift from risk-based to hazard-based regulation

A core requirement introduced by the CSS is the prioritisation of intrinsic hazard over exposure-based risk management for the most harmful substances. This means:

• Substances with certain hazardous properties are targeted for restriction or phase-out regardless of exposure control measures.

• Traditional “safe use” arguments are no longer sufficient for regulatory approval.

• Regulatory tolerance for complex risk management assumptions is materially reduced.

This change directly affects chemicals used in:

• energy storage and batteries;

• renewable energy manufacturing;

• hydrogen production and processing;

• cooling, insulation, and construction materials.

2) Generic risk management and “essential use” logic

The CSS introduces a generic risk management approach, whereby groups of chemicals are restricted by default unless an essential use can be demonstrated.

An essential use must meet all three criteria:

• the chemical is necessary for health, safety or critical societal functioning;

• no technically and economically feasible alternatives exist;

• the use minimises exposure and environmental release.

This reverses the burden of proof. Industry must now justify continued use rather than regulators justifying restriction.

3) Expansion of chemical groups subject to restriction

The Strategy targets entire classes of substances, including:

• PFAS (“forever chemicals”);

• endocrine disruptors;

• persistent, bioaccumulative, and toxic substances;

• substances with immunotoxic, neurotoxic, or respiratory effects.

Group-based regulation reduces the scope for molecule-by-molecule substitution and significantly increases compliance exposure for complex supply chains.

4) Safe and Sustainable by Design (SSbD) as a regulatory expectation

The CSS embeds Safe and Sustainable by Design as a guiding principle for future authorisations, funding, and market access. While initially non-binding, SSbD is now being translated into:

• funding eligibility criteria;

• procurement requirements;

• future REACH authorisation and restriction decisions.

Compliance, therefore increasingly requires:

• early-stage hazard elimination;

• lifecycle environmental performance;

• circularity and recyclability considerations;

• transparency on chemical composition.

5) Data generation, transparency, and digital traceability

The Strategy mandates stronger data requirements across the chemical lifecycle, including:

• improved hazard data at lower tonnage thresholds;

• digital product passports linking chemical content to products;

• improved information flow along supply chains.

Failure to generate or share data increasingly results in regulatory default assumptions against safety, rather than regulatory tolerance.

Important Deadlines

The CSS operates through staggered legal implementation, including:

• 2023–2024: adoption of revised CLP Regulation and hazard classes

• 2024–2025: REACH revision proposal and negotiation

• 2025–2030: phased PFAS restrictions and endocrine disruptor integration

• 2030 onward: full integration of SSbD principles into market access, funding, and procurement

There is no single compliance date. Obligations escalate progressively.

Current Status

The Chemicals Strategy for Sustainability is actively implemented through binding legislative amendments and delegated acts. Key components are already in force (CLP revisions), while others (REACH reform, PFAS restrictions) are in advanced legislative or regulatory preparation.

Penalties for Non-Compliance

Penalties arise under the implementing legislation rather than the Strategy itself and include:

• REACH non-compliance fines and market bans;

• withdrawal of authorisations;

• product recalls;

• denial of EU funding or procurement eligibility;

• civil and reputational liability linked to greenwashing and misleading sustainability claims.

Because restrictions are often absolute, non-compliance frequently results in loss of market access, not just fines.

Examples of Known Compliance Failure Modes

Common failure patterns linked to CSS-driven regulation include:

• reliance on legacy REACH authorisations without reassessing hazard-based exposure;

• late identification of PFAS in complex components;

• assuming “low exposure” arguments remain sufficient post-CSS;

• failure to map chemical content beyond tier-1 suppliers;

• sustainability claims are inconsistent with chemical hazard profiles.

Resources

• https://environment.ec.europa.eu/strategy/chemicals-strategy_en

• https://environment.ec.europa.eu/topics/chemicals/reach_en

• https://environment.ec.europa.eu/topics/chemicals/classification-labelling-and-packaging-clp_en