Air Toxics Notebook
Wool Fiberglass Manufacturing - Area Sources -  Subpart NN

Applicability: eCFR Subpart NN [ecfr.gov].

This subpart applies to:
  1. Wool fiberglass manufacturing facilities considered to be, or located at, Area Sources of HAPs.

Affected Sources:
  1. Gas-fired glass-melting furnaces that are not subject to subpart NNN of this part.
  2. Gas-fired glass-melting furnaces, including those that use electricity as a supplemental energy source.
Rules apply to small, area sources? Yes
Known Sources in NDEE Jurisdiction:
No.

Date of Original Final Rule: 7/29/15
Amendments Dates:
State Regulations (Title 129): The 2015 Final Rule has not been adopted into Title 129. Sources are still responsible for ensuring they are in compliance with current federal requirements found for this subpart in the CFR.
Federal Regulations: 40 CFR 63.880
Related Rules:

NSPS Part 60

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

NESHAP Part 63
Subpart DDD - Mineral Wool Production
Subpart NNN - Wool Fiberglass Manufacturing - Major Sources
Subpart HHHH - Wet-formed Fiberglass Mat
Regulations and Federal Registers: eCFR Subpart NN [ecfr.gov]

(See attached file: 2N - Fed. Reg. 2015-07-29 - Final Rule.pdf)

SizeFile Name
605 KB 2N - Fed. Reg. 2015-07-29 - Final Rule.pdf
Forms:
Important Dates: These are the same as those found in NESHAP NNN:

Source Classification
  • Existing Sources = Commence construction or reconstruction on or before March 31, 1997
  • New Sources = Commence construction or reconstruction after March 31, 1997
Initial Notification
  • No later than Oct 12, 1999 or 120 days after startup, whichever is later.
Compliance Dates
  • Existing Sources = June 14, 2002
  • New Sources = Upon startup.
Notice of Intent to Test
  • At least 60 days prior to test
Compliance Status Notification
  • No later than 60 days after test
Compliance Reports
  • Semiannual
  • Must cover reporting periods of Jan 1 - June 30 or July 1 - Dec 31
  • Must be submitted no later than 30 days after the end of the reporting period.

FAQs, Fact Sheets, and Rule Summaries: EPA's Subpart NN Website [epa.gov] - contains federal register notices, technical information, and implementation toos.
Presentations, Training and Articles:
Other Information and Resources:
Notes:
Page Last Updated: 3/19/18