# Standards of Performance for Fossil-Fuel-Fired Steam Generators for Which Construction Is Commenced After August 17, 1971; Standards of Performance for Electric Utility Steam Generating Units for Which Construction Is Commenced After September 18, 1978; Standards of Performance for Industrial-Commercial-Institutional Steam Generating Units; and Standards of Performance for Small Industrial-Commercial-Institutional Steam Generating Units
> **Rule** · Final rule. · Published 2009-01-28 · Effective 2009-01-28 · 74 FR 5072
## Document
- **Document number:** E9-523
- **Category:** air-emissions
- **Federal Register citation:** 74 FR 5072
- **CFR reference:** 40 CFR 60
- **Publication date:** 2009-01-28
- **Effective date:** 2009-01-28
- **EPA docket:** EPA-HQ-OAR-2005-0031
## Abstract

EPA is amending the new source performance standards (NSPS) for electric utility steam generating units and industrial-commercial- institutional steam generating units. These amendments to the regulations are to add compliance alternatives for owners and operators of certain affected sources, eliminate the opacity standard for facilities with a particulate matter (PM) limit of 0.030 lb/million British thermal units (MMBtu) or less that choose to voluntarily install and use PM continuous emission monitors (CEMS) to demonstrate compliance with that limit, and to correct technical and editorial errors.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2009/01/28/E9-523/standards-of-performance-for-fossil-fuel-fired-steam-generators-for-which-construction-is-commenced)
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