Toxic Substances Control Act (TSCA), 15 U.S.C. §2601 et seq.

Record: chemical-process-reg-023 (Chemical/Process, flagship regulation). Issuing body: US EPA.

1. What it is, who issues and enforces it

TSCA is the United States' primary chemicals-management statute, administered by EPA's Office of Chemical Safety and Pollution Prevention. It gives EPA authority over the manufacture, import, processing, distribution, use, and disposal of chemical substances and mixtures. The 2016 Frank R. Lautenberg Chemical Safety for the 21st Century Act comprehensively modernized TSCA — mandatory risk evaluations, deadlines, fees, and a reset of the TSCA Inventory — and is the framework in force today. Enforcement: EPA (civil/administrative/criminal), with citizen-suit provisions.

2. Scope, triggers, thresholds

TSCA Inventory. A chemical substance must be on the TSCA Inventory (or exempt) to be manufactured or imported for non-exempt commercial purposes. New chemicals require premanufacture notification (PMN) under §5 — at least 90 days before manufacture/import — during which EPA reviews and may impose §5(e) consent orders or §5(f) rules restricting the substance.
Risk evaluation (§6). EPA prioritizes chemicals as High-Priority, conducts risk evaluations, and for substances presenting unreasonable risk must issue §6(a) rules (restrictions up to and including bans). This is the engine room of modern TSCA.
Significant New Use Rules (SNURs, §5(a)(2)). EPA can designate uses as "significant new uses" requiring 90-day notification before starting them.
Reporting (§8). Chemical Data Reporting (CDR) every four years for manufacturers/importers above thresholds (generally 25,000 lb/yr per site, lower for certain chemicals); §8(a) PAIR and §8(d) health-and-safety study reporting as required.
Export/import (§§12–13). Export notification for certain chemicals; import certification that substances comply with TSCA.

3. Key compliance obligations

Inventory/PMN discipline. Before making or importing any new substance, confirm Inventory status; file PMN with the full health/environmental dataset EPA expects (thin PMNs draw §5(e) orders).
CDR reporting. Quadrennial reporting of manufacture/import volumes, use, and exposure information.
§6 rule compliance. Track final §6(a) risk-management rules for your substances — these are substance-specific restrictions with their own compliance dates, recordkeeping, and downstream notification duties.
SNUR monitoring. Before adopting a new use of a listed chemical, check for SNURs.
Recordkeeping. Five-year retention of required records; import certifications per shipment.

4. Penalties and consequences

TSCA §16 (inflation-adjusted; verify current figures):

Civil: up to ~$120,000+ per violation per day (2024-adjusted figure commonly cited ~$121,275; verify current).
Criminal: knowing violations — up to 1 year imprisonment (individuals), higher for knowing endangerment.
Commercial: EPA can issue §5(f) orders halting manufacture; customs can block imports lacking proper certification.

5. Version and live changes (checked 2026-09-30)

TSCA's live edge is the §6 risk-management rulemaking pipeline, which has been highly active:

Asbestos (chrysotile): EPA's 2024 final rule phases out chrysotile asbestos (the last form still imported for chlor-alkali diaphragms and other uses) with staggered compliance dates — a landmark first §6 ban-rule under Lautenberg TSCA.
Methylene chloride: 2024 final rule heavily restricts/bans most uses with workplace chemical protection program (WCPP) requirements for remaining uses.
Perchloroethylene (PCE), trichloroethylene (TCE), carbon tetrachloride, formaldehyde: final or near-final §6 rules issued 2024–2025 with phase-in compliance dates extending into 2026–2028.
PFAS: TSCA §8(a)(7) PFAS reporting rule (one-time reporting of PFAS manufacture/import since 2011) — compliance deadlines were extended, with reporting now expected in 2026 (verify the current deadline; it has moved before). EPA's PFAS Strategic Roadmap actions under TSCA (SNURs on PFAS, test orders under §4) continue.
Flag: §6 rules face industry litigation and the current EPA's broader reconsideration posture; check whether any specific rule's compliance dates have been stayed before planning around them. Also note: TSCA fees rule (2024 update) materially raised PMN and risk-evaluation fees — budget for five-figure PMN fees.

CCPS CCPSC — process-safety management of the substances TSCA regulates; WCPP requirements in §6 rules overlap with PSM/RMP practice.
PE (Chemical) / CEng (IChemE) — PMN engineering assessments and exposure evaluations are professional work.
No TSCA-specific individual certification exists at flagship level; competence is demonstrated through regulatory-affairs practice, not a credential.

7. Honest flags

Penalty figures are inflation-adjusted annually — verify.
The §6 pipeline is the fastest-moving part of US chemicals law; any substance-specific compliance plan must be re-verified against the current Federal Register, and litigation stays are a live risk.
PFAS reporting deadlines have been extended before; confirm the current date rather than relying on older guidance.

Record: chemical-process-reg-023.

Original ETS reference writing, verified against public sources on 2026-09-30. Thin sourcing is flagged inline. Not legal advice — confirm current editions with the issuing body.

Toxic Substances Control Act (TSCA), 15 U.S.C. §2601 et seq.