# 2026-22887: EPA Says Detroit Met Ozone Target After Exceptional-Event Exclusions

2026-22887, Air Plan Approval; Michigan; Determination of Attainment by the Attainment Date for the 2015 Ozone Standards, is a Federal Register rule from Environmental Protection Agency published 2026-11-10, effective 2026-11-10; PRIA reads it as touching household money (as of 2026-11-11).

- Canonical: https://policyrisk.com/federal-register/2026-22887
- As of: 2026-11-11
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2026-22887
- Title: Air Plan Approval; Michigan; Determination of Attainment by the Attainment Date for the 2015 Ozone Standards
- Type: Rule
- Agencies: Environmental Protection Agency
- Citation: 91 FR 72427
- Published: 2026-11-10
- Effective: 2026-11-10
- Comments close: not stated
- Significant: no
- Touches household money: yes
- Regulation identifier numbers: none
- Last updated: 2026-11-11

## In one line

EPA Says Detroit Met Ozone Target After Exceptional-Event Exclusions

## Summary

The EPA has officially confirmed that Detroit met the 2015 ozone air quality standards by the August 3, 2024 deadline. This decision follows Michigan’s successful request to exclude unusual events that temporarily affected air quality. Residents and businesses in Detroit can breathe easier knowing the area is on track, with no new costly restrictions coming from this ruling.

## Abstract

The U.S. Environmental Protection Agency (EPA) is determining under the Clean Air Act (CAA) that the Detroit, Michigan Moderate nonattainment area ("Detroit area" or "area") attained the 2015 ozone National Ambient Air Quality Standards (NAAQS) by the applicable attainment date. This determination relies on the EPA's concurrence on an exceptional events request submitted by the Michigan Department of Environment, Great Lakes, and Energy (EGLE) on February 19, 2026, and concurred on by the EPA on March 24, 2026. Therefore, the EPA is taking final agency action on Michigan's exceptional events request. This action fulfills the EPA's statutory obligation to determine whether the Detroit area attained the 2015 ozone NAAQS by the Moderate attainment date of August 3, 2024.

## Effects PRIA read

- Detroit Attainment — No New Restrictions: benefit, low. You live or work in the Detroit area: the EPA determined the Detroit, Michigan Moderate nonattainment area attained the 2015 ozone standard by the Moderate attainment date of August 3, 2024. The EPA finalized this determination (effective November 10, 2026) and the rule states there are no new regu…
- Specific 2023 Ozone Readings Excluded: benefit, low. The EPA concurred with Michigan’s exceptional events request (EGLE submitted February 19, 2026; EPA concurrence March 24, 2026) excluding wildfire-influenced ozone measurements from regulatory use: Allen Park monitor (Site ID 26-163-0001) on June 29 and June 30, 2023, and East 7 Mile monitor (Site…
- Ozone Monitoring Will Continue in Detroit: benefit, low. The State must operate at least three ozone monitoring sites in the Detroit metropolitan statistical area per 40 CFR part 58 appendix D; EGLE currently operates six ozone monitors and the rule notes none of these monitors are eligible for shutdown and EGLE's 2027 Annual Ambient Air Monitoring Netwo…
- No Significant Impact on Small Entities: benefit, low. Under the Regulatory Flexibility Act, the EPA certified this attainment determination will not have a significant economic impact on a substantial number of small entities and states the the action "will not impose any requirements on small entities beyond those imposed by State law." The rule does…

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## Sources
- [2026-22887 on federalregister.gov](https://www.federalregister.gov/documents/2026/11/10/2026-22887/air-plan-approval-michigan-determination-of-attainment-by-the-attainment-date-for-the-2015-ozone)
- [2026-22887 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-11-10/pdf/2026-22887.pdf)

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Source: PRIA, https://policyrisk.com/federal-register/2026-22887 (as of 2026-11-11).