Stationary Combustion Turbines
Air Toxics Notebook
Stationary Combustion Turbines
eCFR Subpart YYYY  [ecfr.gov]
 [ecfr.gov]
This subpart applies to:
- New stationary combustion turbines with a rated peak power output of at least 1.0 MW, and located at a Major Source of HAPs.
Not subject to this subpart:
- Existing turbines.
- Emergency-use turbines.
- Turbines located on the North Slope of Alaska.
- Turbine engine test cells/stands.
- Duct burners and waste heat recovery units.
On Aug 18, 2004, EPA stayed the effectiveness of the emission and operating limitations for lean-premixed gas-fired and diffusion flame gas-fired turbines. These turbines must comply only with the Initial Notification requirements in 63.6145 until EPA takes final action on the stay. See the Federal Register document below.
| Facility ID | Name | Location | 
| 48518 | Fremont Utilities-Lon D. Wright | Fremont | 
| 35677 | Nucor Steel | Norfolk | 
03/09/2022 - Final Amendments to Remove Stay
03/09/2020 - Final Rule
04/12/2019 - Proposed Rule
08/18/2004 - Final Rule; Stay
03/05/2004 - FInal Rule
Title 129, Chapter 13, Section 002.77
Previously: Chapter 28, Section 001.84.
Sources are also responsible for ensuring they are in compliance with current federal requirements found for this subpart in the CFR.
NSPS – 40 CFR Part 60
Subpart GG – Stationary Gas Turbines w/ Heat Input at Peak Load >10.7 Gigajoules/Hr (10 MMBtu/hr)
Subpart KKKK - Stationary Combustion Turbines
eCFR Subpart YYYY  [ecfr.gov]
 [ecfr.gov]
Source Classification
- Existing Source- Commenced construction or reconstruction on or before Jan 14, 2003.
- Existing Sources are not subject to this rule.
 
- New Source- Commenced construction or reconstruction after Jan 14, 2003.
 
Initial Notification
- Startup before March 5, 2004- Must submit by July 2, 2004
 
- Startup after March 5, 2004- Must submit within 120 days of becoming subject to this subpart.
 
Compliance Dates
- Startup before March 5, 2004- Must comply by March 5, 2004
 
- Startup after March 5, 2004- Must comply upon startup
 
Notification of Intent to Test
- Must submit at least 60 days prior to any planned performance test.
Notification of Compliance Status
- For formaldehyde emission limit, must submit within 60 days of the performance test.
Compliance Reports
- Required semiannually for sources subject to formaldehyde emission limits.
- First report- Must cover the period beginning on the compliance date and ending on June 30 or Dec 31, whichever comes first.
- Must be postmarked by July 31 or Jan 31, whichever comes first following the reporting period.
 
- Subsequent reports- Must cover the period from Jan 1 - June 30 or July 1 - Dec 31.
- Must be postmarked by July 31 or Jan 31, whichever comes first following the reporting period.
 
 
EPA's Subpart YYYY Website  [epa.gov] - contains federal register notices and implementation tools
 [epa.gov] - contains federal register notices and implementation tools
Texas CEQ - Rule Flowchart  [tceq.state.tx.us]
 [tceq.state.tx.us]
