---
kind: "section"
citation: "40 C.F.R. § 63.9784"
title: "40"
number: "63.9784"
heading: "What parts of my plant does this subpart cover?"
url: "https://uscodex.org/cfr/40/63.9784"
---

# §63.9784. What parts of my plant does this subpart cover?

- (a) This subpart applies to each new, reconstructed, or existing affected source at a refractory products manufacturing facility.
- (b) The existing affected sources are shape dryers, curing ovens, and kilns that are used to manufacture refractory products that use organic HAP; shape preheaters, pitch working tanks, defumers, and coking ovens that are used to produce pitch-impregnated refractory products; kilns that are used to manufacture chromium refractory products; and kilns that are used to manufacture clay refractory products.
- (c) The new or reconstructed affected sources are shape dryers, curing ovens, and kilns that are used to manufacture refractory products that use organic HAP; shape preheaters, pitch working tanks, defumers, and coking ovens used to produce pitch-impregnated refractory products; kilns that are used to manufacture chromium refractory products; and kilns that are used to manufacture clay refractory products.
- (d) Shape dryers, curing ovens, kilns, coking ovens, defumers, shape preheaters, and pitch working tanks that are research and development (R&D) process units are not subject to the requirements of this subpart. (See definition of research and development process unit in [§ 63.9824](/cfr/40/63.9824.md)).
- (e) A source is a new affected source if you began construction of the affected source after June 20, 2002, and you met the applicability criteria at the time you began construction.
- (f) An affected source is reconstructed if you meet the criteria as defined in [§ 63.2](/cfr/40/63.2.md).
- (g) **An affected source is existing if it is not new or reconstructed.**

## 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.