Know what changed. Understand what it means. Know what to do next.
Structured regulatory updates — not a blog. Each entry carries jurisdiction, regulation, dates, impact, affected parties and the CHEMREG solutions that help.
CHEMREG Regulatory Watch
Detected changes that need attention
CHEMREG Regulatory Watch
Canada
CEPA 1999 / Chemicals Management Plan
Canada opens a mandatory CEPA section 71 data call on ~200 substances
Effective: Notices in force 29 August 2026Impact: HighCanadian manufacturers · Importers into Canada · Downstream users and formulators
Action required
European Union
CLP — Regulation (EU) 2024/2865, amended by (EU) 2025/2439
EU CLP transition: formulation changes can end your grace period
Effective: 2024/2865 in force 10 December 2024; 2025/2439 ("stop the clock") in force 23 December 2025Impact: HighEU substance registrants · Mixture formulators and producers · Own-brand and private-label owners
Action required
United States
OSHA Hazard Communication Standard (29 CFR 1910.1200)
OSHA HCS 2024: the 20 November 2026 employer deadline for substances is close
Effective: HCS 2024 in force since 19 July 2024; compliance dates extended four months in January 2026Impact: HighUS employers using hazardous chemicals · EHS and site safety managers · Chemical manufacturers, importers and distributors supplying the US
Action required
Recommended action — Run substance matching against the Phase 1 and Phase 2 lists now, then reconstruct 2025 manufacture, import, use and release data for every match before the 3 March 2027 deadline. Open Regulatory Intelligence →
CanadaCEPA 1999 / Chemicals Management PlanACTION REQUIREDImpact: High
Environment and Climate Change Canada and Health Canada published two section 71 notices under CEPA 1999 in the Canada Gazette on 29 August 2026, together covering about 200 substances. Response is mandatory for anyone who manufactured, imported or used a listed substance above the reporting threshold in 2025. Phase 1 (184 substances) closes 3 March 2027; Phase 2 (16 substances) opens the next day and closes 8 September 2027. This is an information-gathering action, not a WHMIS reclassification or a restriction.
Published10 Sept 2026EffectiveNotices in force 29 August 2026Compliance deadline03 Mar 2027Phase 1 (184 substances) closes 3 March 2027; Phase 2 (16 substances) runs 4 March – 8 September 2027
Regulation (EU) 2024/2865 changed the CLP framework and, together with Delegated Regulation (EU) 2023/707, brought in new hazard classes (ED, PBT/vPvB, PMT/vPvM). Regulation (EU) 2025/2439 ("stop the clock") then postponed the label-format and advertising provisions to 1 January 2028. The classification duties for the new hazard classes were not postponed: substances already on the market are due on 1 November 2026, mixtures already on the market on 1 May 2028. The transition rules are not only about dates — placing a reformulated mixture on the market can end the grace period the original mixture relied on.
Published10 Sept 2026Effective2024/2865 in force 10 December 2024; 2025/2439 ("stop the clock") in force 23 December 2025Compliance deadline01 Nov 2026New hazard classes for substances already on the market: 1 November 2026. Label-format and advertising rules: postponed to 1 January 2028. A reformulation can remove a mixture's transitional protection.
EPA's New Chemicals Program status pages show a familiar pattern: cases sitting in risk assessment, and cases waiting on the submitter to sign a consent order. The useful takeaway for companies is that regulatory delay is not always EPA's doing. Incomplete information, unresolved exposure data and slow internal order-signature workflows can add weeks or months to a launch. New-chemical approval is best run as a launch-readiness discipline, not a filing you hand off and wait on.
Published10 Sept 2026EffectiveObservation from EPA New Chemicals Program status pages, September 2026. No fixed date — review time depends on submission completeness and internal order-signature turnaround.
OSHA's updated Hazard Communication Standard (aligned to GHS Revision 7) had its compliance dates pushed back four months in January 2026. Chemical manufacturers, importers and distributors had to update substance SDSs and labels by 19 May 2026. Employers now have until 20 November 2026 to update workplace labels, the written HazCom programme, and training where new hazard information applies. Mixtures follow on 19 November 2027. This is no longer only a supplier SDS exercise — employers must turn the new hazard information into workplace communication.
Published10 Sept 2026EffectiveHCS 2024 in force since 19 July 2024; compliance dates extended four months in January 2026Compliance deadline20 Nov 2026Employers — substances: 20 November 2026. Manufacturers/importers/distributors — substances: 19 May 2026 (passed). All parties — mixtures: 19 November 2027.
EPA has refreshed its guidance for chemical importers. The core message for compliance teams: customs clearance is not the same as TSCA compliance. Before a chemical substance — on its own, in a mixture, or in some articles — enters US commerce, the importer needs to have checked TSCA Inventory listing and active/inactive status, any section 5 PMN or Significant New Use Rule, section 6 restrictions, Title VI formaldehyde requirements for composite wood, and the TSCA import certification. These checks belong in the import process, not after the goods arrive.
Published10 Sept 2026EffectiveOngoing obligation; EPA import guidance refreshed September 2026. No fixed deadline — the checks belong before each shipment and customs entry.
Committee assessment of the broad PFAS restriction proposal is proceeding by sector. Companies should complete PFAS use inventories, identify critical uses and engage through industry channels.
Published02 Sept 2026EffectiveNot yet adoptedCompliance deadlineDerogation lengths under discussion (5–12 years for some uses)
The biennial transport update cycle brings changes to classification criteria, special provisions and packing instructions across modal frameworks. Review dangerous goods master data before the mandatory application date.
Published01 Sept 2026Effective2027-01-01 (with transitional period)Compliance deadlineMandatory application from mid-2027
A grouped restriction dossier has moved to the opinion-forming stage. Manufacturers, importers and downstream users should map affected uses and assess reformulation timelines now.
Published28 Aug 2026EffectivePending final actCompliance deadlineTransition period expected (typ. 18–24 months)
A rule under TSCA Section 8 requires manufacturers and importers to submit specified data for listed substances. Confirm whether listed substances are in scope and prepare submissions.
Published05 Aug 2026Effective15 Sept 2026Compliance deadlineSubmission window closes ~6 months after effective date
The extended hazard classes (ED, PBT/vPvB, PMT/vPvM) apply on staggered dates for substances and mixtures. Review portfolios for substances meeting the new criteria and plan SDS and label revisions.
Published15 Jul 2026EffectiveStaggered — substances then mixturesCompliance deadlineMixtures: transitional deadline in 2026–2027
Registration obligations continue to phase in by tonnage band. Confirm import volumes, pre-registration status and consortium arrangements for substances approaching their band deadline.
Published01 Jul 2026EffectiveRolling deadlinesCompliance deadlineNext band deadline: end of 2026
Updated PCN format and validation rules affect dossier preparation. Review mixtures placed on multiple markets, confirm UFI coverage and re-validate dossiers against the new rules.
Published20 Jun 2026Effective01 Oct 2026Compliance deadlineUpdate affected dossiers before market changes
Amendments align the HPR with a more recent GHS revision, changing certain classification and SDS/label requirements. A transition period applies; plan SDS updates for the Canadian market.
Published30 May 2026EffectiveIn force with transition periodCompliance deadlineTransition ends ~2 years after coming into force
About this content: some entries are illustrative examples of the CHEMREG regulatory-intelligence format. In production, each update is researched, dated, sourced and impact-assessed by CHEMREG regulatory specialists.
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