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Mineral Wool Production

Air Toxics Notebook

Mineral Wool Production

Applicability

eCFR Subpart DDD [ecfr.gov]

This subpart applies to:

  1. Cupolas and curing ovens at mineral wool production facilities located at Major Sources* of HAPs.

*Major Sources of HAPs emit or have the potential to emit:

  • ≥ 10 tons/year of any single HAP; or
  • ≥ 25 tons/year of total HAPs.
  • Area Sources emit less than Major Sources.
Rules apply to small, area sources?
No
Known Sources in NDEE Jurisdiction

No


 

Date of Original Final Rule
Amendments Dates

07/29/2015 - Final Rule
06/23/2003 - Final Rule; Amendments
06/01/1999 - Final Rule

State Regulations

As of September 28, 2022: Title 129, Chapter 13, 002.40

Previously:Title 129, Chapter 28, Section 001.38.

Sources are also responsible for ensuring they are in compliance with current federal requirements found for this subpart in the CFR.

Federal Regulations
40 CFR 63.1175
Related Rules

NSPS - 40 CFR Part 60

Subpart HHH - Synthetic Fiber Production
Subpart PPP - Wool Fiberglass Insulation

 

NESHAP - 40 CFR Part 63

Subpart NN - Wool Fiberglass Manufacturing - Area Sources
Subpart NNN - Wool Fiberglass Manufacturing - Major Sources
Subpart HHHH - Wet-formed Fiberglass Mat Production

Important Dates

Source Classification

  1. Existing = Commence construction or reconstruction on or before November 25, 2011
  2. New = Commence construction or reconstruction after November 25, 2011.
  3. For Table 2, Rows 1-4:
    1. Existing = Commence construction or reconstruction on or before May 8, 1997
    2. New = Commence construction or reconstruction after May 8, 1997

Initial Notification

  1. Within 120 days of becoming subject to this subpart.

Compliance Date

  1. See Table 2

Notice of Intent to Test

  1. 60 days notice prior to any planned performance test.

Notification of Compliance Status

  1. Within 60 days of the performance test.

Compliance Reports

  1. Semiannual
  2. Submitted within 30 days of the end of the reporting period
FAQ's, Fact Sheets, and Rules Summaries

EPA's Subpart DDD Website [epa.gov] - contains federal register notices and technical information

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