# Xylene (mixed) — US federal chemical regulatory reporting thresholds by program (CERCLA, EPCRA, CAA)

For Xylene (mixed), cas no. is 1330-20-7; cercla rq (lbs) is 100; rcra waste number is U239; regulatory categories is 1,3,4, verified against its source on 2026-08-05.

- **Substance:** Xylene (mixed) _(verified: appears in the quote below)_
- **CAS No.:** 1330-20-7 _(verified: appears in the quote below)_
- **CERCLA RQ (lbs):** 100 _(verified: appears in the quote below)_
- **RCRA waste number:** U239 _(verified: appears in the quote below)_
- **Regulatory categories:** 1,3,4 _(verified: appears in the quote below)_

## What the source says

> Xylene (mixed) | 1330-20-7 | 1,3,4 | U239 | 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/).