Oil & Natural Gas Production Facilities

eCFR Subpart HH [ecfr.gov]

This subpart applies to:

1. Major and Area Sources of HAPs* that:
   1. Process, upgrade, or store hydrocarbon liquids; or
   2. Process, upgrade, or store natural gas prior to the point at which it enters the natural gas transmission and storage source category or is delivered to a final end user.

Affected sources:

1. At Major Sources:
   1. Glycol dehydration units;
   2. Storage vessels with the potential for flash emissions;
   3. All ancillary equipment (except compressors), located at natural gas processing plants, intended to operate in volatile HAP service;
   4. Compressors, located at natural gas processing plants, intended to operate in volatile HAP service.
2. At Area Sources:
   1. Triethylene glycol (TEG) 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.

Partial Exemptions**:

1. Facilities that exclusively process, store, or transfer black oil;
2. Major Source facilities with actual annual average natural gas and hydrocarbon throughputs of less than 18,400 standard m3/day and 39,700 liters/day, respectively, prior to the point of custody transfer.

**Certain rule requirements may still apply. Please see full rule text for details.

No

NSPS – 40 CFR Part 60

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 HHH - Natural Gas Transmission & Storage

eCFR Subpart HH [ecfr.gov]