# Dichloropropene — US federal chemical regulatory reporting thresholds by program (CERCLA, EPCRA, CAA) For Dichloropropene, cas no. is 26952-23-8; cercla rq (lbs) is 100; regulatory categories is 1,2, verified against its source on 2026-08-05. - **Substance:** Dichloropropene _(verified: appears in the quote below)_ - **CAS No.:** 26952-23-8 _(verified: appears in the quote below)_ - **CERCLA RQ (lbs):** 100 _(verified: appears in the quote below)_ - **Regulatory categories:** 1,2 _(verified: appears in the quote below)_ ## What the source says > Dichloropropene | 26952-23-8 | 1,2 | | 100 (45.4) ## 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/).