# Ethylene glycol — US federal chemical regulatory reporting thresholds by program (CERCLA, EPCRA, CAA) For Ethylene glycol, cas no. is 107-21-1; cercla rq (lbs) is 5000; regulatory categories is 3, verified against its source on 2026-08-05. - **Substance:** Ethylene glycol _(verified: appears in the quote below)_ - **CAS No.:** 107-21-1 _(verified: appears in the quote below)_ - **CERCLA RQ (lbs):** 5000 _(verified: appears in the quote below)_ - **Regulatory categories:** 3 _(verified: appears in the quote below)_ ## What the source says > Ethylene glycol | 107-21-1 | 3 | | 5000 (2270) ## 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/).