---
kind: "section"
citation: "40 C.F.R. § 721.9580"
title: "40"
number: "721.9580"
heading: "Ethyl methanesulfonate."
url: "https://uscodex.org/cfr/40/721.9580"
---

# §721.9580. Ethyl methanesulfonate.

- (a) **Chemical substance and significant new use subject to reporting.**
  - (1) **The chemical substance ethyl methanesulfonate (CAS No.** 62-50-0) is subject to reporting under this section for the significant new use described in [paragraph (a)(2)](#a-2) of this section.
  - (2) **The significant new use is—** Manufacture, import, or processing of 10,000 pounds or more per year per facility for any use.
- (b) **Specific requirements.** The provisions of subpart A of this part apply to this section except as modified by this paragraph.
  - (1) **Recordkeeping.** The following recordkeeping requirements are applicable to manufacturers, importers, and processors of this substance, as specified in § [721.125 (a)](/cfr/40/721.125.md?p=a), [(b)](/cfr/40/721.125.md?p=b), and [(c)](/cfr/40/721.125.md?p=c).
  - (2) [Reserved]

## Notes

### Amendments

[58 FR 63518, Dec. 1, 1993]

### Authority

Authority: 15 U.S.C. 2604, 2607, and 2625(c).

### Source

Source: 49 FR 35018, Sept. 5, 1984, unless otherwise noted.

### Amendments

[58 FR 63518, Dec. 1, 1993]