# Approval and Promulgation of Air Quality Implementation Plans; Delaware; Ambient Air Quality Standard for Ozone and Fine Particulate Matter
> **Rule** · Final rule. · Published 2005-11-01 · Effective 2005-12-01 · 70 FR 65847
## Document
- **Document number:** 05-21751
- **Category:** air-emissions
- **Federal Register citation:** 70 FR 65847
- **CFR reference:** 40 CFR 52
- **Publication date:** 2005-11-01
- **Effective date:** 2005-12-01
- **State:** DE
- **EPA docket:** R03-OAR-2005-DE-0001
## Abstract

EPA is taking final action to approve revisions to the Delaware State Implementation Plan (SIP). The revisions were submitted by the Delaware Department of Natural Resources and Environmental Control (DNREC) and consist of modifications to the ambient air quality standards for ozone and fine particulate matter. EPA is approving these revisions in the SIP in accordance with the Clean Air Act (CAA).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2005/11/01/05-21751/approval-and-promulgation-of-air-quality-implementation-plans-delaware-ambient-air-quality-standard)
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