40 CFR §420.121

1. (a)The term galvanizing means coating steel products with zinc by the hot dip process including the immersion of the steel product in a molten bath of zinc metal, and the related operations preceding and subsequent to the immersion phase.
2. (b)The term terne coating means coating steel products with terne metal by the hot dip process including the immersion of the steel product in a molten bath of lead and tin metals, and the related operations preceding and subsequent to the immersion phase.
3. (c)The term other coatings means coating steel products with metals other than zinc or terne metal by the hot dip process including the immersion of the steel product in a molten bath of metal, and the related operations preceding the subsequent to the immersion phase.
4. (d)The term fume scrubber means wet air pollution control devices used to remove and clean fumes originating from hot coating operations.
5. (e)The term strip, sheet, and miscellaneous products means steel products other than wire products and fasteners.
6. (f)The term wire products and fasteners means steel wire, products manufactured from steel wire, and steel fasteners manufactured from steel wire or other steel shapes.