---
kind: "section"
citation: "40 C.F.R. § 98.200"
title: "40"
number: "98.200"
heading: "Definition of source category."
url: "https://uscodex.org/cfr/40/98.200"
---

# §98.200. Definition of source category.


The magnesium production and processing source category consists of the following processes:

- (a) Any process in which magnesium metal is produced through smelting (including electrolytic smelting), refining, or remelting operations.
- (b) Any process in which molten magnesium is used in alloying, casting, drawing, extruding, forming, or rolling operations.

## Notes

### Source

Source: 75 FR 39761, July 12, 2010, unless otherwise noted.

### Authority

Authority: 42 U.S.C. 7401-7671q.

### Source

Source: 74 FR 56374, Oct. 30, 2009, unless otherwise noted.