What is the tonnage threshold for TSCA on diethanolamine (dea)?

TSCA Section 8(a) Chemical Data Reporting (CDR) at >25,000 lb/year per US site

CAS 111-42-2 · TSCA · United States of America

Diethanolamine (DEA) under TSCA

C4H11NO2 · 二乙醇胺

Status: Active. Diethanolamine is on the TSCA Active Inventory. **California Proposition 65 listing: diethanolamine listed 22 June 2012 as carcinogen** (sourced to OEHHA Proposition 65 List https://oehha.ca.gov/proposition-65/chemicals/diethanolamine; Cal Prop 65 carcinogen warning required where Chinese-origin DEA placed in California consumer + workplace channel above safe-harbor No Significant Risk Level NSRL). **IARC Group 2B (possibly carcinogenic to humans), Monograph Volume 101 (2013)** (verify exact Monograph Volume + evaluation year against https://monographs.iarc.who.int/ before relying). NO active dedicated US AD/CVD order on Chinese-origin diethanolamine at HS 292212 level identified at time of drafting; verify against access.trade.gov current orders list for ethanolamines / alkylamines from China (cases A-570-066 + C-570-067 referenced in trade press relate to alkylamines from China: verify exact scope, status, + current cash-deposit rate against access.trade.gov before invoicing). **EPA Clean Air Act Section 112 HAP: diethanolamine listed as Hazardous Air Pollutant** (verify against https://www.epa.gov/haps before relying).

Diethanolamine is TSCA-Active with **California Proposition 65 carcinogen listing 22 June 2012 (sourced to OEHHA P65 List) + IARC Group 2B Monograph Volume 101 (2013) + EPA Clean Air Act Section 112 HAP listing**. NO active dedicated US AD/CVD order on DEA at HS 292212 identified; alkylamines cases A-570-066 + C-570-067 from China must be verified against access.trade.gov for current scope + cash-deposit rate before invoicing. NIOSH REL 3 ppm + skin notation + Ca. **Surfactant + cement-grinding aid + gas-treatment + agrochemical (glyphosate adjuvant) + corrosion inhibitor downstream chains**. **Cal Prop 65 warning is the practical California-channel compliance pivot.**

Listing and threshold

Substance	Diethanolamine (DEA) (CAS 111-42-2), C4H11NO2
Regime	US Toxic Substances Control Act (TSCA), administered by EPA
Jurisdiction	United States of America
Status	Active
Tonnage threshold	TSCA Section 8(a) Chemical Data Reporting (CDR) at >25,000 lb/year per US site

Classifications under this regime

TSCA Active Inventory
**California Proposition 65 listing: diethanolamine listed 22 June 2012 as carcinogen** (sourced to OEHHA https://oehha.ca.gov/proposition-65/chemicals/diethanolamine)
**IARC Group 2B (possibly carcinogenic to humans), Monograph Volume 101 (2013)** (verify exact Monograph Volume + evaluation year against https://monographs.iarc.who.int/ before relying)
OSHA PEL: not specifically established for diethanolamine (verify against https://www.osha.gov/annotated-pels before relying)
NIOSH REL: 3 ppm 8-hr TWA + skin notation + Ca (carcinogen) (verify against current https://www.cdc.gov/niosh/npg/)
ACGIH TLV-TWA: 1 mg/m3 inhalable + skin notation (verify against current ACGIH TLV documentation at https://www.acgih.org/ before relying)
**EPA Clean Air Act Section 112 HAP: diethanolamine listed** (verify against https://www.epa.gov/haps before relying)
DOT 49 CFR: NOT regulated as dangerous goods at solid / aqueous form below corrosive concentration threshold

Restrictions and conditions of use

**California Proposition 65 carcinogen warning required where placed in California consumer + workplace channel above safe-harbor NSRL** (sourced to OEHHA 22 June 2012 listing)
NO active dedicated US AD/CVD order on Chinese-origin diethanolamine at HS 292212 level identified at time of drafting (verify against access.trade.gov current orders list for ethanolamines / alkylamines from China before invoicing; cases A-570-066 + C-570-067 referenced in trade press relate to alkylamines from China + must be verified for current scope + status + cash-deposit rate at access.trade.gov)
**EPA Clean Air Act Section 112 HAP: diethanolamine listed; emissions reporting + control requirements at major + area HAP sources**
EPA TRI reporting threshold for ethanolamines (verify against https://www.epa.gov/toxics-release-inventory-tri-program)
No CBP-specific restriction beyond HS 292212

Importer obligations

TSCA Section 13 import certification (positive). **California Proposition 65 carcinogen warning labelling for Chinese-origin DEA placed in California channel above safe-harbor NSRL.** **EPA Clean Air Act Section 112 HAP emissions reporting + control where placed at US site.** Major non-Chinese producers: Dow Chemical (USA Plaquemine LA + Seadrift TX), INEOS (USA Plaquemine LA), Mitsubishi Chemical (Japan Yokkaichi). Major Chinese exporters: SINOPEC Maoming Petrochemical (Guangdong) + SINOPEC Jinling Petrochemical (Nanjing) + Jinghong Energy (Inner Mongolia) + Jiangsu Yida Chemical (Yangzhou).

Required documents

TSCA Section 13 import certification
CBP entry HS 292212 (diethanolamine + its salts)
SDS (Carc. 2 H351 + STOT RE 2 + Acute Tox. 4 oral / dermal + Eye Irrit. 2 + Skin Irrit. 2 + IARC 2B + Cal Prop 65 carcinogen)
**California Proposition 65 carcinogen warning label where placed in California channel above safe-harbor NSRL**
EPA Section 112 HAP emissions reporting documentation where placed at major / area HAP source

Common compliance traps

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

**California Proposition 65 listing: diethanolamine listed 22 June 2012 as carcinogen; Cal Prop 65 warning required for any Chinese-origin DEA placed in California channel above safe-harbor NSRL**
**IARC Group 2B (possibly carcinogenic to humans), Monograph Volume 101 (2013)** (verify exact Monograph Volume + evaluation year against https://monographs.iarc.who.int/ before relying)
**EPA Clean Air Act Section 112 HAP: diethanolamine listed**
NIOSH REL 3 ppm + skin notation + Ca (carcinogen)
ACGIH TLV-TWA 1 mg/m3 inhalable + skin notation
NO active dedicated US AD/CVD order on Chinese-origin DEA at HS 292212 identified at time of drafting (verify against access.trade.gov; alkylamines cases A-570-066 + C-570-067 from China must be checked for current scope + cash-deposit rate before invoicing)
**Surfactant feedstock (cocamide DEA + lauramide DEA progressively reformulated due to nitrosamine concerns) + cement-grinding aid + gas-treatment + agrochemical (glyphosate + 2,4-D adjuvant) + corrosion inhibitor downstream chains**

Where to read next

For substance-level identifiers (formula, molecular weight, SMILES, InChIKey), GHS hazard profile, IMDG transport class, and full sourcing reference for diethanolamine (dea), see the CAS 111-42-2 sourcing reference.

For grade-by-grade buying notes, freight maths, supplier-tier pricing, and a worked landed-cost example, the diethanolamine (dea) 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.

Cross-jurisdiction profile and sourcing references

Referenced in

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