# Ethene, 1,2-dichloro-(E) — US federal chemical regulatory reporting thresholds by program (CERCLA, EPCRA, CAA) For Ethene, 1,2-dichloro-(E), cas no. is 156-60-5; cercla rq (lbs) is 1000; rcra waste number is U079; regulatory categories is 2,4, verified against its source on 2026-08-05. - **Substance:** Ethene, 1,2-dichloro-(E) _(verified: appears in the quote below)_ - **CAS No.:** 156-60-5 _(verified: appears in the quote below)_ - **CERCLA RQ (lbs):** 1000 _(verified: appears in the quote below)_ - **RCRA waste number:** U079 _(verified: appears in the quote below)_ - **Regulatory categories:** 2,4 _(verified: appears in the quote below)_ ## What the source says > Ethene, 1,2-dichloro-(E) | 156-60-5 | 2,4 | U079 | 1000 (454) ## Source - https://www.ecfr.gov/current/title-40/chapter-I/subchapter-J/part-302/section-302.4 Last verified: 2026-08-05. Review by: 2027-08-05. Part of [US federal chemical regulatory reporting thresholds by program (CERCLA, EPCRA, CAA)](https://referencesource.org/chemical-regulatory-reporting-thresholds/).