Air Toxics Notebook
Stationary Combustion Turbines -  Subpart YYYY

Applicability: eCFR Subpart YYYY [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.
Rules apply to small, area sources? No
Known Sources in NDEQ Jurisdiction:

Facility ID

Name
Location
48518
Fremont Utilities-Lon D. Wright
Fremont
35677
Nucor Steel
Norfolk

Date of Original Final Rule: 3/5/04
Amendments Dates: 08/18/2004 - Final Rule; Stay
03/05/2004 - FInal Rule
State Regulations (Title 129): Title 129,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.
Federal Regulations: 40 CFR 63.6080
Related Rules:

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
Regulations and Federal Registers:
eCFR Subpart YYYY [ecfr.gov]

(See attached file: 4Y - Fed. Reg. 2004-08-18 - Stay of Standards for Gas-fired Subcategories.pdf)

(See attached file: 4Y - Fed. Reg. 2004-03-05 - Final Rule.pdf)

SizeFile Name
62 KB 4Y - Fed. Reg. 2004-08-18 - Stay of Standards for Gas-fired Subcategories.pdf
301 KB 4Y - Fed. Reg. 2004-03-05 - Final Rule.pdf
Forms: NDEQ Notification Form

(See attached file: 4Y - Initial Notification Form.pdf)(See attached file: 4Y - Initial Notification Form.docx)

SizeFile Name
124 KB 4Y - Initial Notification Form.pdf
26 KB 4Y - Initial Notification Form.docx
Important Dates: 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.

FAQs, Fact Sheets, and Rule Summaries: EPA's Subpart YYYY Website [epa.gov] - contains federal register notices and implementation tools

Texas CEQ - Rule Flowchart [tceq.state.tx.us]

Presentations, Training and Articles:
Other Information and Resources:
Notes:
Page Last Updated: 6/28/18