# Methane, trichloro- — US federal chemical regulatory reporting thresholds by program (CERCLA, EPCRA, CAA)

For Methane, trichloro-, cas no. is 67-66-3; cercla rq (lbs) is 10; rcra waste number is U044; regulatory categories is 1,2,3,4, verified against its source on 2026-08-05.

- **Substance:** Methane, trichloro- _(verified: appears in the quote below)_
- **CAS No.:** 67-66-3 _(verified: appears in the quote below)_
- **CERCLA RQ (lbs):** 10 _(verified: appears in the quote below)_
- **RCRA waste number:** U044 _(verified: appears in the quote below)_
- **Regulatory categories:** 1,2,3,4 _(verified: appears in the quote below)_

## What the source says

> Methane, trichloro- | 67-66-3 | 1,2,3,4 | U044 | 10 (4.54)

## 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/).