Data / Federal rules / 2026-00677
New Source Performance Standards Review for Stationary Combustion Turbines and Stationary Gas Turbines
The Environmental Protection Agency published this final rule in the Federal Register on January 15, 2026. It took effect on January 15, 2026.
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What the agency says
The U.S. Environmental Protection Agency (EPA, or Agency) is finalizing amendments to the new source performance standards (NSPS) for stationary combustion turbines and stationary gas turbines pursuant to a review required by the Clean Air Act (CAA). As a result of this review, the EPA is establishing subcategories for new, modified, or reconstructed stationary combustion turbines based on size, rates of utilization, design efficiency, and fuel type. The EPA determined that combustion controls are the best system of emission reduction (BSER) for nitrogen oxide (NO<INF>X</INF>) emissions for most new, modified, or reconstructed stationary combustion turbines. For one subcategory, the BSER for NO<INF>X</INF> is combustion controls with the addition of selective catalytic reduction (SCR). The EPA further determined that the BSER for sulfur dioxide (SO<INF>2</INF>) emissions has not changed since the last NSPS review. Based on these determinations, the Agency is promulgating standards of performance in a new subpart of the Code of Federal Regulations (CFR). The Agency is also adding a subcategory for stationary combustion turbines that are used in temporary applications, exempting certain sources from title V requirements, and finalizing other provisions. The EPA is finalizing amendments to existing regulations to address or clarify specific technical and editorial issues.
Key facts
- Document number
- 2026-00677
- Type
- Final rule
- Action
- Final rule
- Agency
- Environmental Protection Agency
- Published
- January 15, 2026
- Takes effect
- January 15, 2026
- Dates
- This final rule is effective on January 15, 2026. The incorporation by reference of certain publications listed in the rule is approved by the Director of the Federal Register as of January 15, 2026. The incorporation by reference of certain other material listed in the rule was approved by the Director of the Federal Register as of July 8, 2004, and July 6, 2006.
- Docket
- EPA-HQ-OAR-2024-0419; FRL-11542-02-OAR
- Regulation ID (RIN)
- 2060-AW21
- Code of Federal Regulations
- 40 CFR 60
- Topics
- Administrative practice and procedure; Air pollution control; Environmental protection; Incorporation by reference; Reporting and recordkeeping requirements
- Significant
- Yes, under Executive Order 12866
- Pages
- 96
Other documents from the Environmental Protection Agency
Everything from the Environmental Protection Agency · Rules on administrative practice and procedure · Rules on air pollution control · Rules on environmental protection · Published in January 2026
Read from the Federal Register API, last updated 2026-10-23. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.