CAS 107-13-1 · TSCA · United States of America

Acrylonitrile under TSCA

C3H3N · 丙烯腈

Status: Listed. Acrylonitrile is on the TSCA Inventory and is currently listed as TSCA Active. **Active OSHA Acrylonitrile Standard 29 CFR 1910.1045** (specific carcinogen standard with PEL 2 ppm 8-hr TWA + STEL 10 ppm + Action Level 1 ppm). **California Proposition 65 listed as carcinogen since 1 July 1987** (verify exact listing date against OEHHA https://oehha.ca.gov/proposition-65/proposition-65-list before invoicing). **TRI Section 313 listed**: Form R annual reporting required. **EPA RMP threshold 20,000 lb** (regulated toxic substance). NOT on DEA scheduling. NO active US AD case on Chinese-origin acrylonitrile currently. Section 301 List 3 25% additional duty applies. EPA TSCA Section 6 risk evaluation: acrylonitrile was prioritised in 2024.

The US acrylonitrile lane is dominated by **OSHA Acrylonitrile-specific 29 CFR 1910.1045 PEL + Cal Prop 65 + EPA RMP 20,000 lb threshold + TRI Form R + TSCA Section 6 prioritisation 2024 watch**. NO active US AD/CVD case. Section 301 List 3 25% additional duty applies. Major US producers: INEOS (Lima Ohio plus Green Lake Texas plus Aurora Illinois; verify the world-largest rank for total INEOS acrylonitrile capacity against the INEOS corporate site before relying), Cornerstone Chemical / Frontline.

Listing and threshold

Substance Acrylonitrile (CAS 107-13-1), C3H3N
Regime US Toxic Substances Control Act (TSCA), administered by EPA
Jurisdiction United States of America
Status Listed
Tonnage threshold CDR (Chemical Data Reporting) threshold: 25,000 lb (11,340 kg) manufactured or imported per site per year

Classifications under this regime

  • OSHA Hazard Communication Standard (HCS): GHS H225 / H301 / H311 / H315 / H317 / H319 / H331 / H335 / H341 / H350 / H411
  • **OSHA Acrylonitrile Standard 29 CFR 1910.1045** (specific carcinogen standard): PEL 2 ppm 8-hr TWA, STEL 10 ppm, Action Level 1 ppm
  • NIOSH REL: 1 ppm 8-hr TWA, 10 ppm STEL (occupational carcinogen)
  • **TSCA Section 6 prioritisation 2024**
  • NOT on DEA List I or List II
  • **California Proposition 65 listed (carcinogen 1987)**
  • **TRI Section 313 listed**
  • **EPA RMP threshold 20,000 lb**
  • DOT hazardous materials regulation: UN 1093, Class 3 + Class 6.1, PG I
  • **IARC: acrylonitrile re-evaluated in Monograph Volume 136 (2025); prior Volume 71 (1999) assessed acrylonitrile at Group 2B. Verify current Group classification against https://monographs.iarc.who.int/list-of-classifications/ before relying**

Restrictions and conditions of use

  • **OSHA Acrylonitrile-specific 29 CFR 1910.1045 PEL compliance**: regulated areas, exposure monitoring, medical surveillance, training, recordkeeping
  • **Cal Prop 65 listing requires "WARNING"** on consumer products containing acrylonitrile above No-Significant-Risk-Level
  • **EPA RMP threshold 20,000 lb**: Risk Management Plan required
  • NO active US AD/CVD case on Chinese-origin acrylonitrile currently
  • Section 301 List 3 25% additional duty applies on Chinese-origin acrylonitrile (HS 292610)
  • **TRI Form R annual reporting**

Importer obligations

TSCA is a self-certification regime. The dominant practitioner-facing layer is **OSHA Acrylonitrile-specific 29 CFR 1910.1045 PEL + Cal Prop 65 + EPA RMP 20,000 lb threshold + TRI Form R + TSCA Section 6 prioritisation 2024 watch**. NO active AD/CVD case. Section 301 List 3 25% additional duty applies. Major US domestic producers: INEOS Lima Ohio plus INEOS Green Lake Texas plus INEOS Aurora Illinois (verify INEOS's most recent total US acrylonitrile capacity and the world-largest rank against the INEOS corporate site before relying), Cornerstone Chemical / Frontline (Westville Indiana).

Required documents

  • TSCA Section 13 Import Certification statement on customs entry
  • OSHA-compliant SDS reflecting full hazard classification
  • OSHA Acrylonitrile Standard 29 CFR 1910.1045 workplace compliance documentation
  • Customs entry CBP Form 7501 with HS code 292610 (acrylonitrile) and Section 301 List 3 25% duty applied
  • **EPA RMP filing** (where site exceeds 20,000 lb threshold)
  • Cal Prop 65 "WARNING" label compliance documentation
  • TRI Form R annual report

Common compliance traps

The pitfalls that have bitten importers on this lane in the past. None of these is theoretical.

  • **OSHA Acrylonitrile-specific 29 CFR 1910.1045 PEL** compliance
  • **Cal Prop 65 listing applies to all finished-product distribution to California**
  • **EPA RMP threshold 20,000 lb**
  • **TRI Form R annual reporting**
  • **TSCA Section 6 prioritisation 2024** (long-term watch-item)
  • NO active US AD/CVD case on Chinese acrylonitrile currently
  • Section 301 List 3 25% additional duty applies
  • Major US producers: INEOS Lima Ohio plus INEOS Green Lake Texas plus INEOS Aurora Illinois (verify INEOS's most recent total US acrylonitrile capacity and the world-largest rank against the INEOS corporate site before relying), Cornerstone Chemical / Frontline

Where to read next

For substance-level identifiers (formula, molecular weight, SMILES, InChIKey), GHS hazard profile, IMDG transport class, and full sourcing reference for acrylonitrile, see the CAS 107-13-1 sourcing reference.

For grade-by-grade buying notes, freight maths, supplier-tier pricing, and a worked landed-cost example, the acrylonitrile cornerstone hub covers the full sourcing chain.

For the structure and history of TSCA, see the TSCA glossary entry.

Need cross-jurisdiction compliance support on this substance? Run it through the REACH / TSCA / IECSC / AICIS / K-REACH checker, or send us the substance and the destination and we will quote FOB China and CIF / DDP landed including the regulatory work on the destination side.

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Cross-jurisdiction profile and sourcing references

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