UVCB Substances

Substances of Unknown or Variable composition, Complex reaction products or Biological materials (UVCBs) which present unique challenges for identification, characterisation, and safety assessment under chemical regulations.

Foresight tracks UVCB Substances developments and surfaces the alerts most likely to matter before they turn into missed deadlines, recalls, or escalation work.

Current activity

Intensifying

243% above the prior 8-week baseline

3-month trend

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Last updated

7 April 2026, 11:08

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Latest UVCB Substances alerts

The most recent regulatory and guidance signals tracked by Foresight

Concawe Updates Guidance on Identification of Petroleum UVCB Substances for REACH

Concawe has updated its guidance for identifying petroleum and hydrocarbon UVCB substances to align with tightened REACH Annex VI identity requirements. Registrants should review updated analytical methods and justification strategies for renewable and co-processed hydrocarbons to ensure dossier completeness and minimize ECHA information requests.

concawe.euEuropean UnionEuropean Union

US Chamber Of Commerce Comments On House TSCA Modernization Discussion Draft

The U.S. Chamber of Commerce has issued formal recommendations for TSCA modernization, prioritizing predictable chemical review timelines and risk-based assessments. Businesses should anticipate a sustained industry push to limit the scope of PFAS regulations on articles and streamline the path to market for new chemical innovations.

uschamber.comUnited StatesUnited States

ECHA Testing Proposal Consultation for Turpentine Oil (CAS 8006-64-2)

ECHA has launched a consultation on a testing proposal for Turpentine oil's reproductive toxicity, with a deadline of April 10, 2026. The resulting hazard data will inform future regulatory classifications, potentially impacting market access and compliance requirements for turpentine-containing formulations.

echa.europa.euEuropean UnionEuropean Union

EU ECHA Invites Information On REACH Testing Proposals For Amides, C8-18 (Even Numbered) And C18-Unsatd., N,N-Bis(hydroxyethyl)

ECHA is consulting on vertebrate testing proposals for a specific amide substance (EC 931-329-6) under REACH, with submissions due by 8 May 2026. Stakeholders should review existing data to potentially avoid new animal testing and prepare for hazard reclassifications that may impact downstream product compliance.

echa.europa.euEuropean UnionEuropean Union

EU ECHA Opens Consultation on Reproductive and Developmental Toxicity Testing Proposal for Amides, C8-18 (Even Numbered) and C18-Unsatd., N-(Hydroxyethyl) (EC 931-330-1)

ECHA has opened a consultation on higher-tier toxicity testing proposals for specific fatty acid amides, with submissions due by May 8, 2026. This process signals potential future CMR classifications, requiring manufacturers to validate read-across strategies and assess long-term substance viability in product formulations.

echa.europa.euEuropean UnionEuropean Union

EU/ECHA Consultation On REACH Developmental Toxicity Test Proposal For Fatty Acids, Tall-Oil, Reaction Products With Formaldehyde And (Z)-N-9-Octadecenyl-1,3-Propanediamine (CAS 68911-83-1)

ECHA is seeking third-party data on developmental toxicity for a specific tall-oil fatty acid derivative to evaluate a REACH vertebrate testing proposal by May 2026. Companies should assess their data holdings to avoid redundant testing costs and anticipate potential shifts in hazard classification for this substance.

echa.europa.euEuropean UnionEuropean Union

EU ECHA Consults on REACH Testing Proposal for Residues (Petroleum), Thermal Cracked Vacuum

ECHA is consulting on REACH testing proposals for reproductive and developmental toxicity for petroleum residues through May 8, 2026. The outcome may trigger hazard reclassifications for petroleum-derived UVCBs, necessitating a review of read-across strategies and potential supply chain impacts.

echa.europa.euEuropean UnionEuropean Union

EU/ECHA Testing Proposal Consultation for Residues (Petroleum), Vacuum (EC 265-057-8)

ECHA has opened a public consultation on REACH testing proposals for petroleum residues, seeking data on reproductive and developmental toxicity by May 2026. This signals potential future hazard classification changes; stakeholders should review read-across strategies to mitigate data gaps and influence the final assessment.

echa.europa.euEuropean UnionEuropean Union

ECHA Consults On REACH Testing Proposal For Amides, C8-18 (even numbered) And C18-unsatd., N,N-bis(hydroxyethyl)

ECHA has initiated a consultation on REACH testing proposals for specific amides (EC 931-329-6) regarding reproductive and developmental toxicity, closing May 8, 2026. The resulting data may lead to new hazard classifications, potentially triggering stricter regulatory controls and necessitating proactive supply chain risk assessments for impacted product lines.

echa.europa.euEuropean UnionEuropean Union

EU ECHA Testing Proposal For Fatty Acids, Tall-Oil, Reaction Products With Formaldehyde And (Z)-N-9-Octadecenyl-1,3-Propanediamine

ECHA has initiated a public consultation on a REACH testing proposal for a fatty acid derivative (EC 272-789-1) to address developmental toxicity data gaps. Impacted manufacturers and downstream users should submit existing data by May 8, 2026, to avoid mandatory vertebrate testing and prepare for potential hazard reclassification.

echa.europa.euEuropean UnionEuropean Union

ECHA Opens Consultation On 54 REACH Testing Proposals (Deadline 8 May 2026)

ECHA has launched a public consultation on 54 new REACH testing proposals for vertebrate studies, covering 32 substances including vanadium compounds, petroleum residues, and complex amides. Companies should review the proposed endpoints—ranging from reproductive toxicity to bioaccumulation—to provide existing data or non-animal alternatives by 8 May 2026 to avoid unnecessary testing costs and animal use.

echa.europa.euEuropean UnionEuropean Union

EU/France: French Authorities Defend CLP Harmonised Classifications for MMA, SDPA and DPG (24th–25th ATP)

French authorities are formally urging the European Commission to adopt strict harmonised classifications for MMA, SDPA, and DPG within the upcoming 24th and 25th CLP ATPs. If adopted, these classifications—covering reproductive toxicity and sensitisation—will trigger significant new labelling, packaging, and downstream restriction obligations for manufacturers and users.

circabc.europa.euEuropean UnionEuropean UnionFranceFrance

Australia (AICIS) Adds CAS 1072005-10-7 to Industrial Chemicals Inventory

Australia's AICIS added CAS 1072005-10-7 to the national inventory (AIIC) in February 2026, transitioning the substance from certificate-based to public listing. Introducers must ensure current operations match the original assessment or notify the regulator within 28 days of any changes to maintain compliance.

industrialchemicals.gov.auAustraliaAustralia

EU Commission Approves Formaldehyde From Paraformaldehyde/2‑Hydroxypropylamine (3:2) as BPR Active Substance for Product-Types 2, 6, 11, 12 and 13

The EU has approved formaldehyde-releasing "RP 3:2" for specific industrial biocidal uses (PT 2, 6, 11, 12, 13) effective June 2027. As a candidate for substitution, this approval imposes strict professional-use restrictions and mandatory labeling for treated articles.

eur-lex.europa.euEuropean UnionEuropean Union

ECHA Consults On REACH Testing Proposals For Reaction Products Of Diphenylamine With Nonene, Branched (EC 701-385-4)

ECHA has opened a consultation on REACH testing proposals for bioaccumulation and reproductive toxicity for EC 701-385-4, active until April 2026. This regulatory scrutiny signals potential future classification as a CMR or PBT substance, necessitating early supply chain impact assessments for impacted formulations.

echa.europa.euEuropean UnionEuropean Union

EU Parliament Notice: Petition 0218/2025 on Classification of Natural Versus Synthetic Essential Oils

The European Commission has confirmed that the revised CLP Regulation already differentiates natural essential oils from synthetic alternatives through specific classification exemptions for plant extracts. This clarification provides regulatory certainty for the natural ingredients sector, ensuring that synthetic substitutes remain subject to stricter mixture labeling requirements.

europarl.europa.euEuropean UnionEuropean Union

Australia (AICIS) Varies Inventory Listing for CAS 403656-24-6 After Revocation of CBI Approval

Australia's AICIS has publicly disclosed the identity of CAS 403656-24-6 on the national inventory following the revocation of its confidential status. Companies introducing this substance must ensure compliance with existing notification obligations and monitor the shift toward increased transparency in chemical identity reporting.

industrialchemicals.gov.auAustraliaAustralia

EU General Court Issues Judgment on CLP Classification of 1,4‑Benzenediamine, N,N’-Mixed Ph and Tolyl Derivatives (Case T‑174/24)

The EU General Court has upheld the harmonised classification of 1,4-Benzenediamine derivatives as toxic for reproduction and skin sensitising (January 2026). This ruling confirms the Commission's broad discretion in using read-across for multi-constituent substances, significantly raising the legal burden for industry to challenge RAC-backed hazard assessments.

eur-lex.europa.euEuropean UnionEuropean Union

Canada Publishes Order 2026-87-01-02 Amending Non-Domestic Substances List Under CEPA 1999

Canada has amended the Non-Domestic Substances List (NDSL) to include new substances, effective January 2026. This update streamlines market access by reducing notification and data requirements for substances already established in international commerce.

gazette.gc.caCanadaCanada

Netherlands Outlines Steel Slag Restrictions and Policy Framework for Secondary Construction Materials

The Netherlands has introduced emergency restrictions and notification mandates for steel slag in construction, triggering a REACH safeguard procedure to pursue an EU-wide restriction. Businesses must prepare for enhanced traceability and stricter permitting as the Dutch government develops a new policy framework for the safe reuse of secondary construction materials.

open.overheid.nlNetherlandsNetherlands

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