StacksVerified U.S. regulatory reference

40 CFR §98.110

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
The ferroalloy production source category consists of any facility that uses pyrometallurgical techniques to produce any of the following metals: ferrochromium, ferromanganese, ferromolybdenum, ferronickel, ferrosilicon, ferrotitanium, ferrotungsten, ferrovanadium, silicomanganese, or silicon metal.