# Approval and Promulgation of Air Quality Implementation Plans; Delaware; Redesignation Requests, Associated Maintenance Plans, and Motor Vehicle Emissions Budgets for the Delaware Portion of the Philadelphia-Wilmington, PA-NJ-DE Nonattainment Area for the 1997 Annual and 2006 24-Hour Fine Particulate Matter Standards, and the 2007 Comprehensive Emissions Inventory for the 2006 24-Hour Fine Particulate Matter Standard
> **Rule** · Final rule. · Published 2014-08-05 · Effective 2014-09-04 · 79 FR 45350
## Document
- **Document number:** 2014-18205
- **Category:** air-emissions
- **Federal Register citation:** 79 FR 45350
- **CFR reference:** 40 CFR 52
- **Publication date:** 2014-08-05
- **Effective date:** 2014-09-04
- **State:** DE
- **EPA docket:** EPA-R03-OAR-2014-0022
## Abstract

The Environmental Protection Agency (EPA) is approving the State of Delaware's requests to redesignate to attainment the Delaware portion of the Philadelphia-Wilmington, PA-NJ-DE nonattainment area (hereafter "the Philadelphia Area" or "the Area") for both the 1997 annual and the 2006 24-hour fine particulate matter (PM<INF>2.5</INF>) National Ambient Air Quality Standards (NAAQS or standards). EPA is also approving as revisions to the Delaware State Implementation Plan (SIP), the associated maintenance plans to show maintenance of the 1997 annual and the 2006 24-hour PM<INF>2.5</INF> NAAQS through 2025 for the Delaware portion of the Area. EPA is also proposing to approve the motor vehicle emissions budgets (MVEBs) included in Delaware's maintenance plans for the Delaware portion of the Area for both the 1997 annual and 2006 24-hour PM<INF>2.5</INF> standards. EPA is also determining that the Delaware portion of the Philadelphia Area continues to attain both the 1997 annual and the 2006 24-hour PM<INF>2.5</INF> NAAQS. In addition, EPA is approving the 2007 emissions inventory for the Delaware portion of the Area for the 2006 24-hour PM<INF>2.5</INF> NAAQS. These actions are being taken under the Clean Air Act (CAA).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2014/08/05/2014-18205/approval-and-promulgation-of-air-quality-implementation-plans-delaware-redesignation-requests)
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