# 2026-12419: EPA Denies Request to Block ExxonMobil Baytown Permit

2026-12419, Clean Air Act Operating Permit Program; Petition for Objection to State Operating Permit for ExxonMobil Corporation, Harris County, Texas, is a Federal Register notice from Environmental Protection Agency published 2026-06-22, effective 2026-05-27 (as of 2026-06-29).

- Canonical: https://policyrisk.com/federal-register/2026-12419
- As of: 2026-06-29
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2026-12419
- Title: Clean Air Act Operating Permit Program; Petition for Objection to State Operating Permit for ExxonMobil Corporation, Harris County, Texas
- Type: Notice
- Agencies: Environmental Protection Agency
- Citation: 91 FR 37116
- Published: 2026-06-22
- Effective: 2026-05-27
- Comments close: not stated
- Significant: no
- Touches household money: no
- Regulation identifier numbers: none
- Last updated: 2026-06-29

## In one line

EPA Denies Request to Block ExxonMobil Baytown Permit

## Summary

The EPA said no to Harris County’s request to block ExxonMobil’s air permit for its Baytown plant in Texas. This means ExxonMobil can keep operating under the current rules, but the county can still take the issue to court by August 21, 2026. No new costs or changes for ExxonMobil right now, but the legal clock is ticking!

## Abstract

The Environmental Protection Agency (EPA) Administrator signed an Order dated May 27, 2026, denying a petition dated November 12, 2025, from the Harris County Attorney's Office (the Petitioner). The petition requested that the EPA object to a Clean Air Act (CAA) title V operating permit issued by the Texas Commission on Environmental Quality (TCEQ) to the ExxonMobil Corporation, for its Baytown Olefins Plant located in Harris County, Texas.

## Effects PRIA read

No economic effects identified for this document.

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## Sources
- [2026-12419 on federalregister.gov](https://www.federalregister.gov/documents/2026/06/22/2026-12419/clean-air-act-operating-permit-program-petition-for-objection-to-state-operating-permit-for)
- [2026-12419 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-06-22/pdf/2026-12419.pdf)

## Related
- [Previous: 2026-12418, Pesticide Product Registration; Receipt of Applications for New Active Ingredie…](https://policyrisk.com/federal-register/2026-12418)
- [Next: 2026-12421, Clean Air Act Operating Permit Program; Petitions for Objection to State Operat…](https://policyrisk.com/federal-register/2026-12421)
- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2026-12419 (as of 2026-06-29).