| Applicability: |
eCFR Subpart HHH  [ecfr.gov]
This subpart applies to:
- Sources that are Major Sources of HAPs* and transport or store natural gas prior to entering the pipeline to a local distribution company or final end user.
Affected sources:
- Large glycol dehydration units;
- Small glycol dehydration units.
*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.
Not subject to this subpart:
- Sources that do not contain glycol dehydration units.
Partial Exemption:
- A facility with a facilitywide actual annual average natural gas throughput < 28.3 thousand standard cubic meters per day, where glycol dehydration units are the only HAP emission source, is not subject to the requirements of this subpart.
- Records shall be maintained as required in §63.10(b)(3).
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| Rules apply to small, area sources? |
No |
| Known Sources in NDEQ Jurisdiction: |
| Name | Location |
56628 | KMIGT | Big Springs |
5456 | KMIGT - Huntsman | Sidney |
|
| Date of Original Final Rule: |
6/17/99 |
| Amendments Dates: |
08/16/2012 - Final Rule
04/20/2006 - Amendments
06/23/2003 - Amendments
02/22/2002 - Technical Corrections
09/27/2001 - Technical Corrections
06/29/2001 - Technical Corrections |
| State Regulations (Title 129): |
As of September 28, 2022: Title 129, Chapter 13, Section 002.43
Previously: Chapter 28, Section 001.40.
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 63.1270 |
| Related Rules: |
Subpart Ka or Kb - Petroleum Liquid Storage
Subpart XX – Bulk Gasoline Terminals (loading racks)
Subpart KKK – Onshore Natural Gas Processing Plants (equipment leaks)
Subpart LLL – Onshore Natural Gas Processing
NESHAP – 40 CFR Part 63 Subpart HH – Oil and Natural Gas Production Facilities |
| Regulations and Federal Registers: |
eCFR Subpart HHH  [ecfr.gov]
(See attached file: 3H - Fed. Reg. 2012-08-16 - Final Rule.pdf)
(See attached file: 3H - Fed. Reg. 2006-04-20 - Amendments.pdf)
(See attached file: 3H - Fed. Reg. 2003-06-23 - Amendments.pdf)
(See attached file: 3H - Fed. Reg. 2002-02-22 - Final Rule; technical corrections.pdf)
(See attached file: 3H - Fed. Reg. 2001-09-27 - Final Rule; technical corrections.pdf)
(See attached file: 3H - Fed. Reg. 2001-06-29 - Final Rule; technical corrections.pdf)
(See attached file: 3H - Fed. Reg. 1999-06-17 - Final Rule.pdf)
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| Forms: |
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| Important Dates: |
Source Classification
- For small GDUs only
- Existing = commenced construction on or before Aug 23, 2011
- New = commenced construction after Aug 23, 2011
- Large GDUs are not separated into New or Existing sources by date.
Initial Notification
- Must be submitted by June 17, 2000 or within 1 year of becoming subject to this subpart, whichever is later.
- Existing small GDUs:
- Must submit by Oct 15, 2013 or within 1 year of becoming subject to this subpart, whichever is later.
Compliance Dates
- For GDUs that commenced construction or reconstruction before Feb 6, 1998:
- Must comply by June 17, 2002
- Area Sources that become Major Sources must comply within 3 years of becoming Major.
- For GDUs that commenced construction or reconstruction on or after Feb 6, 1998:
- Must comply upon startup or by June 17, 1999, whichever is later.
- Area Sources that become Major Sources must comply immediately upon becoming Major.
- Existing small GDUs = Must comply by Oct 15, 2015
- New small GDUs = Comply upon startup or by Oct 15, 2012, whichever is later.
Notice of Intent to Test
Compliance Status Notification
- Within 180 days of compliance date
Compliance Reports
- Semi-annual
- Due 60 days after the end of the applicable reporting period
- First report
- Must cover 6-month period beginning with Compliance Status Notification
- Due 240 days after Compliance Status Notification
- Subsequent reports every 6 months thereafter
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| FAQs, Fact Sheets, and Rule Summaries: |
(See attached file: 3H - Summary of Changes - 2012.pdf)
EPA's Subpart HHH Website  [epa.gov] - contains federal register notices, technical information and implementation tools
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| Presentations, Training and Articles: |
(See attached file: Oil & Gas - Trinity Consultants Webinar_071212.pdf)
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| Other Information and Resources: |
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| Notes: |
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| Page Last Updated: |
12/2/22 |