# Proposed Revisions of the Nonattainment Designation for the 2008 and 2015 Ozone Standards and Clean Data Determinations for the 2008 and 2015 Ozone Standards: Cecil County, MD and New Castle County, DE

> **EPA** · Rulemaking · Modified 2026-02-10T13:54:51Z

## Docket
- **Docket ID:** EPA-R03-OAR-2025-1872
- **Agency:** EPA
- **Type:** Rulemaking
- **Last modified:** 2026-02-10T13:54:51Z

## Source
- [regulations.gov docket](https://www.regulations.gov/docket/EPA-R03-OAR-2025-1872)
- [Public comments](https://www.regulations.gov/docket/EPA-R03-OAR-2025-1872/comments)

---

*MORVS · CC0 1.0*