---
kind: "section"
citation: "40 C.F.R. § 98.140"
title: "40"
number: "98.140"
heading: "Definition of the source category."
url: "https://uscodex.org/cfr/40/98.140"
---

# §98.140. Definition of the source category.

- (a) A glass manufacturing facility manufactures flat glass, container glass, pressed and blown glass, or wool fiberglass by melting a mixture of raw materials to produce molten glass and form the molten glass into sheets, containers, fibers, or other shapes. A glass manufacturing facility uses one or more continuous glass melting furnaces to produce glass.
- (b) A glass melting furnace that is an experimental furnace or a research and development process unit is not subject to this subpart.

## Notes

### Authority

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

### Source

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