---
kind: "section"
citation: "40 C.F.R. § 63.9782"
title: "40"
number: "63.9782"
heading: "Am I subject to this subpart?"
url: "https://uscodex.org/cfr/40/63.9782"
---

# §63.9782. Am I subject to this subpart?


You are subject to this subpart if you own or operate a refractory products manufacturing facility that is, is located at, or is part of, a major source of hazardous air pollutant (HAP) emissions according to the criteria in paragraphs [(a)](#a) and [(b)](#b) of this section.

- (a) A refractory products manufacturing facility is a plant site that manufactures refractory products (refractory bricks, refractory shapes, monolithics, kiln furniture, crucibles, and other materials used for lining furnaces and other high temperature process units), as defined in [§ 63.9824](/cfr/40/63.9824.md). Refractory products manufacturing facilities typically process raw material by crushing, grinding, and screening; mixing the processed raw materials with binders and other additives; forming the refractory mix into shapes; and drying and firing the shapes.
- (b) A major source of HAP is a plant site that emits or has the potential to emit any single HAP at a rate of 9.07 megagrams (10 tons) or more per year or any combination of HAP at a rate of 22.68 megagrams (25 tons) or more per year.

## Notes

### Source

Source: 68 FR 18747, Apr. 16, 2003, unless otherwise noted.

### Authority

Authority: 42 U.S.C. 7401 et seq.

### Source

Source: 57 FR 61992, Dec. 29, 1992, unless otherwise noted.