Changeflow GovPing Environment EPA Final Rule on PEPO Production Source Catego...
Priority review Rule Added Final

EPA Final Rule on PEPO Production Source Category Impacts

Favicon for www.regulations.gov Regs.gov: Environmental Protection Agency
Detected March 19th, 2026
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Summary

The EPA has issued a final rule concerning the PEPO production source category, focusing on impacts and control options for ethylene oxide (EtO) emissions. The rule details costs and impacts associated with various control strategies, including heat exchange systems, maintenance vent controls, and flare systems.

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What changed

The Environmental Protection Agency (EPA) has finalized a rule addressing the PEPO (Polyethylene Polyols) production source category, specifically targeting emissions of ethylene oxide (EtO). This rule details the costs and impacts associated with implementing control options, such as heat exchange systems, maintenance vent controls, and flare systems. The associated documentation includes extensive Excel spreadsheets detailing cost impacts for specific equipment and processes, as well as data for specific facilities like BASF Corp. Geismar and Covestro.

This final rule imposes new regulatory requirements on manufacturers within the PEPO production source category. Companies will need to review the specific control technologies and associated costs outlined in the rule and its supplementary materials to determine compliance strategies. While a specific compliance deadline is not immediately apparent from the provided information, affected entities should prepare to implement necessary emission controls and reporting mechanisms to meet the final rule's requirements. Non-compliance could lead to enforcement actions by the EPA.

What to do next

  1. Review EPA's final rule on PEPO production source category impacts.
  2. Analyze associated cost and impact data for EtO emission control options.
  3. Develop and implement compliance strategies for emission controls.

Source document (simplified)

Content

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Attachments 21

d6 EtO PEPO Heat Exchange System Costs & Impacts (Control Options 1 & 2) (for final) Excel Spreadsheet

More Information
- Abstract The PDF version of this document may be an incomplete rendering of the original MS Excel file. Please open the Excel file to view the document in its entirety.
- Author(s) Eastern Research Group, Inc. (ERG)
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Appendix A d6 PEPO equipment leaks cost impacts (OHAP) (for final) Excel Spreadsheet

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- Abstract The PDF version of this document may be an incomplete rendering of the original MS Excel file. Please open the Excel file to view the document in its entirety.
- Author(s) Eastern Research Group, Inc. (ERG)
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d2d3 PEPO SSM Maintenance Vent Costs & Impacts (for final) Excel Spreadsheet

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- Abstract PEPO Maintenance Process Vents/Equipment Opening Impacts. The PDF version of this document may be an incomplete rendering of the original MS Excel file. Please open the Excel file to view the document in its entirety.
- Author(s) Eastern Research Group, Inc. (ERG)
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d2d3 PEPO Flare Costs & Impacts (for final) Excel Spreadsheet

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- Abstract The PDF version of this document may be an incomplete rendering of the original MS Excel file. Please open the Excel file to view the document in its entirety.
- Author(s) Eastern Research Group, Inc. (ERG)
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Appendix-B PEPO EtO ProcessVents+Tanks Stream Data for Costs (for final) Excel Spreadsheet

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- Abstract The PDF version of this document may be an incomplete rendering of the original MS Excel file. Please open the Excel file to view the document in its entirety.
- Author(s) Eastern Research Group, Inc. (ERG)
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PEPO EtO ProcessVents+Tanks TOCost BASFCorpGeismar Excel Spreadsheet

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- Abstract The PDF version of this document may be an incomplete rendering of the original MS Excel file. Please open the Excel file to view the document in its entirety.
- Author(s) Eastern Research Group, Inc. (ERG)
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PEPO EtO ProcessVents+Tanks TOCost Covestro Excel Spreadsheet

More Information
- Abstract The PDF version of this document may be an incomplete rendering of the original MS Excel file. Please open the Excel file to view the document in its entirety.
- Author(s) Eastern Research Group, Inc. (ERG)
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PEPO EtO ProcessVents+Tanks TOCost DowTexasFreeport Excel Spreadsheet

More Information
- Abstract The PDF version of this document may be an incomplete rendering of the original MS Excel file. Please open the Excel file to view the document in its entirety.
- Author(s) Eastern Research Group, Inc. (ERG)
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PEPO EtO ProcessVents+Tanks TOCost MonumentChemicalKentucky Excel Spreadsheet

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- Abstract The PDF version of this document may be an incomplete rendering of the original MS Excel file. Please open the Excel file to view the document in its entirety.
- Author(s) Eastern Research Group, Inc. (ERG)
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PEPO EtO ProcessVents+Tanks TOCost ShellChemicalGeismar Excel Spreadsheet

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- Abstract The PDF version of this document may be an incomplete rendering of the original MS Excel file. Please open the Excel file to view the document in its entirety.
- Author(s) Eastern Research Group, Inc. (ERG)
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PEPO EtO ProcessVents+Tanks TOCost StepanCo Excel Spreadsheet

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- Abstract The PDF version of this document may be an incomplete rendering of the original MS Excel file. Please open the Excel file to view the document in its entirety.
- Author(s) Eastern Research Group, Inc. (ERG)
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PEPO EtO ProcessVents+Tanks TOCost UCCSouthCharleston Excel Spreadsheet

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- Abstract The PDF version of this document may be an incomplete rendering of the original MS Excel file. Please open the Excel file to view the document in its entirety.
- Author(s) Eastern Research Group, Inc. (ERG)
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PEPO EtO ProcessVents+Tanks TOCost UCCStCharles Excel Spreadsheet

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- Abstract The PDF version of this document may be an incomplete rendering of the original MS Excel file. Please open the Excel file to view the document in its entirety.
- Author(s) Eastern Research Group, Inc. (ERG)
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PEPO EquipmentLeaksMonteCarlo 10000Runs Excel Spreadsheet

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- Abstract The PDF version of this document may be an incomplete rendering of the original MS Excel file. Please open the Excel file to view the document in its entirety.
- Author(s) Eastern Research Group, Inc. (ERG)
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PEPO EtO Equipment-Leaks 1wt%EtO-Threshold CostImpacts ControlOptions2-6 Excel Spreadsheet

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- Abstract The PDF version of this document may be an incomplete rendering of the original MS Excel file. Please open the Excel file to view the document in its entirety.
- Author(s) Eastern Research Group, Inc. (ERG)
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PEPO EtO Equipment-Leaks CostImpacts ControlOption1 Excel Spreadsheet

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- Abstract The PDF version of this document may be an incomplete rendering of the original MS Excel file. Please open the Excel file to view the document in its entirety.
- Author(s) Eastern Research Group, Inc. (ERG)
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PEPO Heat Exchange System Costs & Impacts (OHAP) (Control Options 1 & 2) (for final) Excel Spreadsheet

More Information
- Abstract The PDF version of this document may be an incomplete rendering of the original MS Excel file. Please open the Excel file to view the document in its entirety.
- Author(s) Eastern Research Group, Inc. (ERG)
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PEPO EtO WW Analysis (for final) Option 1 Excel Spreadsheet

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- Abstract The PDF version of this document may be an incomplete rendering of the original MS Excel file. Please open the Excel file to view the document in its entirety.
- Author(s) Eastern Research Group, Inc. (ERG)
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PEPO EtO WW Analysis (for final) Option 2 Excel Spreadsheet

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- Abstract The PDF version of this document may be an incomplete rendering of the original MS Excel file. Please open the Excel file to view the document in its entirety.
- Author(s) Eastern Research Group, Inc. (ERG)
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Incinerators and Oxidizers Calculation Spreadsheet (note: updated September 2022) (xlsm)

More Information
- Abstract The PDF version of this document may be an incomplete rendering of the original MS Excel file. Please open the Excel file to view the document in its entirety.
- Author(s) Eastern Research Group, Inc. (ERG)
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Clean Air Act Section 112(d)(5) GACT Standard Analysis for Equipment Leaks that Emit Ethylene Oxide and Section 112(d)(6) Technology Review for Equipment Leaks from Chemical Manufacturing Process Units at Area Sources Subject to the CMAS NESHAP

More Information
- Abstract January 2025 Memorandum to William Gallagher, USEPA/OAR/OAQPS/SPPD, from Eastern Research Group, Inc. (ERG)
- Author(s) Eastern Research Group, Inc. (ERG)
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Source

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Environment
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Classification

Agency
EPA
Instrument
Rule
Legal weight
Binding
Stage
Final
Change scope
Substantive

Who this affects

Applies to
Manufacturers
Geographic scope
National (US)

Taxonomy

Primary area
Environmental Protection
Operational domain
Compliance
Topics
Air Quality Industrial Emissions

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