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

For Methane, bromo-, cas no. is 74-83-9; cercla rq (lbs) is 1000; rcra waste number is U029; regulatory categories is 2,3,4, verified against its source on 2026-08-05.

- **Substance:** Methane, bromo- _(verified: appears in the quote below)_
- **CAS No.:** 74-83-9 _(verified: appears in the quote below)_
- **CERCLA RQ (lbs):** 1000 _(verified: appears in the quote below)_
- **RCRA waste number:** U029 _(verified: appears in the quote below)_
- **Regulatory categories:** 2,3,4 _(verified: appears in the quote below)_

## What the source says

> Methane, bromo- | 74-83-9 | 2,3,4 | U029 | 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/).