NMP under REACH, EPA TSCA and Global Regulation
What Importers and Formulators Need to Know in 2026
If you manufacture, import, formulate, or use N-Methyl-2-Pyrrolidone (NMP, CAS 872-50-4) anywhere in the world, the regulatory map has become more complicated every year since 2018 ⚖️. The European Union has restricted NMP under REACH Annex XVII, the US Environmental Protection Agency is finalizing a TSCA risk-management rule, and China, Korea, Japan, and India all apply their own occupational-exposure regimes.
This 2026 snapshot explains what is binding now, what is coming, and what it means for your supply chain. It is written for EHS managers, regulatory affairs specialists, procurement teams, and export compliance officers - in plain language but with enough specific references that your legal team can trace every statement back to source.
- ⚖️ 2026 Regulatory Landscape at a Glance
- 🇪🇺 European Union - REACH Annex XVII Entry 71
- 🇺🇸 United States - EPA TSCA Rulemaking Status
- 🇨🇳 China - GBZ 2.1, Decree 591, MEE Order No. 12
- 🌏 Other Major Markets: Japan, Korea, Canada, India
- 💊 Pharmaceutical - ICH Q3C Class 2 Residual Solvent
- 🚢 What It All Means for Importers, Exporters & Formulators
- ✅ A Compliance Checklist You Can Use Tomorrow
- ❓ Frequently Asked Questions
1. ⚖️ 2026 Regulatory Landscape at a Glance
Before diving into jurisdictions, the big-picture takeaway is simple: no country has banned NMP for industrial use, and none is likely to in the near term. But every major market now requires documented exposure control, compliant labeling, and exposure scenarios embedded in safety data sheets. The direction of travel is clear - tighter controls, not bans.
| Jurisdiction | Current Status (April 2026) | Binding? |
|---|---|---|
| 🇪🇺 European Union | REACH Annex XVII Entry 71 in force since 9 May 2020; DNEL-based exposure limits mandatory | ✅ Yes |
| 🇺🇸 United States (federal) | TSCA risk-management rule proposed in June 2024; final rule expected 2026 | ⏳ Coming |
| 🇺🇸 California (Cal/OSHA) | Substance-specific PEL of 1 ppm (≈ 4 mg/m³) with "Skin" notation | ✅ Yes |
| 🇨🇳 China | Decree 591 hazardous chemical regime + GBZ 2.1-2019 occupational limits + GB 30000 series (GHS) | ✅ Yes |
| 🇯🇵 Japan | ISHL + JSOH recommended OEL; GHS labelling mandatory | ✅ Yes |
| 🇰🇷 South Korea | K-REACH registered substance; MoEL OEL applies | ✅ Yes |
| 💊 ICH (global pharma) | ICH Q3C(R8) - Class 2 residual solvent, PDE 5.3 mg/day | ✅ Yes |
NMP remains fully available for industrial use worldwide in 2026. What has changed is the paperwork burden - extended safety data sheets, exposure scenarios, workplace monitoring plans, PPE protocols, and, in the EU, proof that DNEL values are respected. Well-run factories and reputable suppliers already have this in place; smaller players scramble each time a rule tightens.
2. 🇪🇺 European Union - REACH Annex XVII Entry 71
NMP was first added to the ECHA Candidate List of Substances of Very High Concern (SVHC) in 2011. After several years of risk-assessment committee work, the EU Commission added NMP to REACH Annex XVII as Entry 71 via Commission Regulation (EU) 2018/588, with the restrictions entering into force on 9 May 2020 for most uses and on 9 May 2024 for use as a solvent in wire-coating.
📋 What Entry 71 Actually Requires
Manufacturers, importers, and downstream users of NMP on its own or in mixtures at ≥ 0.3 % weight concentration must ensure that workers are not exposed above the following binding Derived No-Effect Levels (DNELs):
| Parameter | Binding Value | Basis |
|---|---|---|
| Long-term inhalation DNEL (worker) | 14.4 mg/m³ (8-h TWA) | Developmental toxicity |
| Long-term dermal DNEL (worker) | 4.8 mg/kg bw/day | Developmental toxicity |
Crucially, both values must be respected simultaneously. When multiple exposure routes apply (as they almost always do with NMP), combined exposure must also be evaluated. These DNELs and the associated risk-management measures must be communicated via the Extended Safety Data Sheet (eSDS) with exposure scenarios appended.
Some EU member states maintain an indicative occupational exposure limit (IOELV) of 40 mg/m³ (10 ppm) for NMP. Where both the IOELV and the Annex XVII DNEL apply to the same workplace, the lower value (14.4 mg/m³ DNEL) is binding. The IOELV does not override the REACH restriction.
🔖 CLP Classification (Harmonised)
Under Annex VI of CLP Regulation (EC) 1272/2008, index No 606-021-00-7, NMP carries: Reproductive toxicity Category 1B (H360D - May damage the unborn child), Skin Irrit. 2 (H315), Eye Irrit. 2 (H319), STOT SE 3 (H335). The generic concentration limit for the Repr. 1B classification in mixtures is C ≥ 0.3 %. Full toxicology details are in our companion article Is NMP Toxic? Health Effects & Safe Handling.
3. 🇺🇸 United States - EPA TSCA Rulemaking Status
The US regulatory story for NMP has moved in waves. In 2020, EPA completed its TSCA risk evaluation and concluded that NMP presents an unreasonable risk of injury to human health, citing developmental post-implantation foetal loss from short-term exposure and reduced fertility from long-term exposure. A revised risk determination was issued in December 2022.
On 14 June 2024, EPA published a proposed rule under TSCA Section 6(a) (89 FR 51134) to address that risk. As of this writing (April 2026), the rule is still in the final-rule development phase - according to EPA's own Regulatory Agenda, a notice of proposed rulemaking was scheduled with the final rule expected in 2026.
🛠️ What the Proposed Rule Would Do
- Prohibit certain consumer and commercial uses of NMP where safer alternatives exist (e.g. automotive care, commercial cleaning and degreasing, metal-cleaning, furniture-care).
- Limit NMP concentration in consumer glues and adhesives to no more than 45 %.
- Container size and labelling restrictions for remaining consumer products.
- Establish a Workplace Chemical Protection Program (WCPP) for continuing industrial uses - including Li-ion battery manufacturing, semiconductors, polymer production, and paints/coatings. The WCPP includes an Existing Chemical Exposure Limit (ECEL), exposure monitoring, engineering controls, PPE, training, and recordkeeping.
EPA finalized TSCA rules for methylene chloride (April 2024), trichloroethylene (December 2024), and perchloroethylene (2024). For each, the agency later issued compliance-date extensions after industry implementation challenges. Expect a similar pattern when the NMP rule is finalized - phased compliance with the WCPP typically kicks in roughly 12 – 18 months after the Federal Register publication date.
🏛️ What Is Already Binding in the US
- OSHA General Duty Clause - employers must keep workplaces free from recognised hazards; NMP has no federal OSHA substance-specific PEL, but California's Cal/OSHA imposes a 1 ppm (≈ 4 mg/m³) PEL with "Skin" notation.
- ACGIH TLV (recommended, not binding) - 10 ppm with "Skin" notation.
- OSHA Hazard Communication Standard (29 CFR 1910.1200, 2024 revision) - labelling with GHS pictograms and the "Danger" signal word.
- State right-to-know laws - e.g. New Jersey, California Proposition 65.
4. 🇨🇳 China - GBZ 2.1, Decree 591, MEE Order No. 12
China is the world's largest producer and consumer of NMP, driven primarily by its dominant position in lithium-ion battery manufacturing. Despite this scale, NMP is regulated under general industrial chemical frameworks rather than a substance-specific restriction. The key instruments are:
| Regulation | Applies to NMP How? |
|---|---|
| State Council Decree 591 Regulations on the Control over Safety of Hazardous Chemicals |
Governs the manufacture, storage, transport, and use of hazardous chemicals across the supply chain. |
| GBZ 2.1-2019 Occupational Exposure Limits for Hazardous Agents - Chemical |
Sets Chinese PC-TWA (8-h time-weighted average) and PC-STEL / MAC values used for workplace air monitoring. |
| MEE Order No. 12 Measures on Registrations of New Chemical Substances |
Applies to new substances; NMP is on the Inventory of Existing Chemical Substances produced or Imported (IECSC), so no new-substance registration required. |
| GB 30000.1-2024 (in force 1 Aug 2025) GHS Classification and Labelling - General Rules |
Mandatory China-GHS labelling and SDS format for NMP sold domestically; aligned with UN GHS Rev. 8. |
| Customs inspection for exports | Chinese exporters must produce a hazard-classification report from an accredited laboratory, along with SDS and precautionary labels, for customs clearance. |
For domestic manufacturers and exporters in China, the pragmatic result is: production continues at scale, but every drum of NMP ships with a China-GHS SDS, an accredited hazard identification report, and compliant packaging. Reputable exporters such as Sinolook Chemical maintain a paperwork pack that satisfies both Chinese customs and the destination-country requirements (EU eSDS, US OSHA HCS 2024, etc.).
5. 🌏 Other Major Markets: Japan, Korea, Canada, India
Beyond the EU, US, and China, the following frameworks matter most often for NMP importers and users:
🇯🇵 Japan
NMP is regulated under the Industrial Safety and Health Law (ISHL) and the Chemical Substances Control Law (CSCL). The Japan Society for Occupational Health (JSOH) has a recommended OEL of 1 ppm, and GHS-compliant labelling is mandatory under the ISHL SDS regulation (Enforcement Order Cabinet Order).
🇰🇷 South Korea
NMP is a registered substance under K-REACH (Act on Registration, Evaluation, etc. of Chemicals). The Ministry of Employment and Labor (MoEL) sets occupational exposure limits. Importers must ensure that Korean SDSs align with local GHS rules.
🇨🇦 Canada
Under the Canadian Environmental Protection Act (CEPA) and the Chemicals Management Plan, NMP was assessed and listed; Health Canada has published risk-management measures similar to EU/US directions. WHMIS labelling (GHS-aligned) applies for workplace use.
🇮🇳 India
NMP is governed under the Manufacture, Storage and Import of Hazardous Chemicals Rules (MSIHC). Factory handling is regulated under the Factories Act with OELs reflecting international practice. India's GHS adoption is through BIS standards.
🇦🇺 Australia & 🇬🇧 UK
Australia: AICIS (Australian Industrial Chemicals Introduction Scheme); Safe Work Australia WES. UK: post-Brexit UK REACH - broadly mirroring EU REACH with independent compliance deadlines managed by HSE.
6. 💊 Pharmaceutical - ICH Q3C Class 2 Residual Solvent
If NMP is used as a reaction solvent, recrystallisation solvent, or process aid in the manufacture of active pharmaceutical ingredients (APIs), the International Council for Harmonisation guideline ICH Q3C(R8) applies globally. ICH Q3C classifies NMP as a Class 2 solvent - "Solvent to be limited" - based on inherent toxicity.
The permitted daily exposure (PDE) for NMP under ICH Q3C is 5.3 mg/day. From this, a concentration limit is derived for drug products based on the maximum daily dose - commonly expressed as 530 ppm for a 10 g/day product. API manufacturers must validate residual-solvent levels by gas chromatography and include the results in regulatory filings (DMF, CTD Module 3.2.P.5.4).
For more on NMP's role in pharmaceutical and agrochemical synthesis, see our companion article on NMP in pharmaceutical and agrochemical manufacturing.
7. 🚢 What It All Means for Importers, Exporters & Formulators
Translating regulation into practical supply-chain decisions is where many teams get stuck. Here is the operational summary by role:
📦 If You Import NMP into the EU
- Your supplier must provide an Extended Safety Data Sheet (eSDS) with exposure scenarios covering your intended use.
- You must perform a site-specific chemical safety assessment demonstrating that worker exposure remains below the 14.4 mg/m³ and 4.8 mg/kg bw/day DNELs.
- Concentration in mixtures ≥ 0.3 % triggers the full restriction - label and SDS must reflect the Repr. 1B classification.
- Keep records; ECHA and national enforcement bodies conduct inspections.
📦 If You Import NMP into the US
- NMP is on the TSCA Inventory - no pre-manufacture notification required.
- Your supplier's SDS must conform to the updated OSHA HCS 2024.
- Begin planning for WCPP compliance - exposure monitoring equipment, engineering controls, respirator programs - so you are ready when the EPA final rule takes effect.
- California shipments: Cal/OSHA 1 ppm PEL + Proposition 65 warning where applicable.
🏭 If You Formulate Products Containing NMP
- Keep formulation concentration at or below thresholds that avoid the strictest classification (e.g. < 0.3 % in EU mixtures avoids Repr. 1B; < 45 % in US consumer glues/adhesives under the proposed rule).
- Ship with compliant labels and SDSs for every destination country.
- Provide customers with enough exposure-scenario information to let them do their own compliance assessment.
When you onboard a new NMP supplier - especially one based in China - ask up front for: (a) current China-GHS SDS, (b) EU eSDS with exposure scenarios (if shipping to EU), (c) OSHA HCS 2024-compliant SDS (if shipping to US), (d) third-party hazard-classification report for export, (e) sample COA, and (f) ICH Q3C statement (if for pharmaceutical use). A supplier who produces all six quickly is a supplier worth doing business with.
8. ✅ A Compliance Checklist You Can Use Tomorrow
A practical one-page checklist for any team handling NMP in 2026. Print it, stick it on the wall, and work through it:
☐ 1. SDS on file - current version, dated within the last 3 years, from the supplier directly.
☐ 2. eSDS (EU only) - exposure scenarios cover all site-specific uses.
☐ 3. CLP / GHS labelling - correct pictogram (GHS08), signal word (Danger), H-statements (H360D, H315, H319, H335).
☐ 4. Exposure assessment - air monitoring + biological monitoring (urinary 5-HNMP) documented annually.
☐ 5. Engineering controls - local exhaust ventilation on all open tanks, coating lines, drying ovens.
☐ 6. PPE program - butyl or laminate gloves, chemical goggles, apron; documented change-out schedule.
☐ 7. Training records - annual refresher for all workers; spill response drill.
☐ 8. Pregnancy notification policy - written procedure for rotating affected workers.
☐ 9. Product labelling - destination-country compliant for every shipment.
☐ 10. Regulatory watch - subscription to ECHA, EPA, and destination-country updates.
9. ❓ Frequently Asked Questions (FAQ)
🔹 Q1. Is NMP banned in the European Union?
No. NMP is restricted, not banned. Under REACH Annex XVII Entry 71 (in force since 9 May 2020), NMP can be manufactured, imported, and used in the EU at any concentration, provided worker exposure remains below the binding DNELs (14.4 mg/m³ inhalation, 4.8 mg/kg bw/day dermal). Products containing ≥ 0.3 % NMP require the Repr. 1B classification.
🔹 Q2. Has the EPA banned NMP in the United States?
As of April 2026, EPA has proposed a TSCA risk-management rule (published June 2024) but has not yet finalized it. The proposed rule would restrict certain consumer/commercial uses and require a Workplace Chemical Protection Program for continuing industrial uses. Check the current Federal Register status before making compliance decisions.
🔹 Q3. What is the ICH residual solvent limit for NMP?
Under ICH Q3C(R8), NMP is a Class 2 solvent with a Permitted Daily Exposure (PDE) of 5.3 mg/day. The concentration limit in drug products is typically expressed as 530 ppm assuming a 10 g/day maximum daily dose.
🔹 Q4. Can I use NMP in consumer products in Europe?
You may, but consumer products with ≥ 0.3 % NMP are subject to the Repr. 1B classification and labelling, and the downstream user must demonstrate compliance with the DNEL-based exposure scenarios. In practice, most EU consumer strippers and cleaners were reformulated below 0.3 % NMP years ago.
🔹 Q5. Do I need to register NMP under K-REACH in South Korea?
NMP is already a registered substance under K-REACH. As an importer, you should confirm with your Korean Only Representative or Importer that your volume is covered under an existing registration. Importers above 1 tonne/year generally must be named in a registration dossier.
🔹 Q6. What is the HS code for NMP?
NMP is classified under HS 2933.79 (other lactams). Your national customs authority may apply additional digits - always confirm with your freight forwarder.
🔹 Q7. Is NMP on the REACH Candidate List (SVHC)?
Yes. NMP was added to the ECHA Candidate List of Substances of Very High Concern in 2011 based on its reproductive toxicity classification (Repr. 1B). SVHC listing triggers information obligations for suppliers of articles containing > 0.1 % NMP by weight under REACH Article 33.
🔹 Q8. Will NMP ever be banned for battery manufacturing?
Unlikely in the foreseeable future. Both the EU and US regulatory approaches explicitly preserve industrial uses where no technically or economically feasible alternative exists - and for Li-ion cathode manufacturing, no drop-in replacement for the NMP/PVDF system is available at commercial scale. Read more in our article on NMP in Li-ion battery manufacturing.
📚 Related Articles in This NMP Series
The toxicology foundation for the regulatory story.
Where most of the consumer-use restrictions focus.
Why regulators explicitly preserve battery-industry use.
🔗 Authoritative External References
- ECHA - Substance Information for N-Methyl-2-pyrrolidone (SVHC + Annex XVII Entry 71): echa.europa.eu
- EU Commission Regulation (EU) 2018/588 - Annex XVII Entry 71 for NMP: eur-lex.europa.eu
- US EPA - Risk Management for n-Methylpyrrolidone (NMP): epa.gov
- US Federal Register - NMP Proposed Rule (June 2024): federalregister.gov
- ICH - Q3C(R8) Impurities: Residual Solvents: ich.org
- OSHA Chemical Data - N-Methyl-2-Pyrrolidinone: osha.gov/chemicaldata/875
REACH-Compliant NMP with Full Regulatory Documentation
Sinolook Chemical supplies N-Methyl-2-Pyrrolidone (CAS 872-50-4) with China-GHS SDS, EU eSDS with exposure scenarios, OSHA HCS 2024-compliant SDS, ICH Q3C pharma statements, and third-party hazard classification reports to customers in 50+ countries. Drums, IBC totes, ISO tanks. Flexible MOQ. 20+ years of chemical export experience.
Sinolook Chemical Co., Ltd. · Specialty chemical exporter to 50+ countries · sinolookchem.com
