Hexachlorobutadiene (HCBD)

For Hexachlorobutadiene (HCBD), tsca section is 6(h), verified against its source on 2026-08-15.

Chemical: Hexachlorobutadiene (HCBD) verified
TSCA section: 6(h) verified
Rule status: Final per epa.gov
Final rule date: December 2020 per epa.gov

Verified2026-08-15

Review by2026-11-13

DatasetEPA TSCA Section 6 chemical risk management status: prohibitions, effective dates, and exemptions

What the source says

6(h) Decabromodiphenyl ether (DecaBDE) Phenol, isopropylated phosphate (3:1) (PIP (3:1)) 2,4,6-Tris(tert-butyl)phenol (2,4,6-TTBP) Hexachlorobutadiene (HCBD)

— epa.gov, retrieved 2026-08-15

What epa.gov says

Regulation of Persistent Bioaccumulative and Toxic Chemicals under TSCA section 6(h). In December 2020, EPA released final rules under the Toxic Substances Control Act (TSCA) to reduce exposure to five chemicals that are persistent, bioaccumulative and toxic (PBT).

— epa.gov, retrieved 2026-08-15

Sources

epa.govhttps://www.epa.gov/assessing-and-managing-chemicals-under-tsca/risk-management-existing-chemicals-under-tsca
epa.govhttps://www.epa.gov/assessing-and-managing-chemicals-under-tsca/regulation-chemicals-under-section-6a-toxic-substances

Last verified against source: 2026-08-15. Due for re-check by 2026-11-13. This page as Markdown · OKF bundle · full dataset as JSON.