# Approval and Promulgation of Air Quality Implementation Plans; Delaware; Interstate Transport Requirements for the 2010 1-Hour Sulfur Dioxide Standard
> **Rule** · Final rule. · Published 2019-02-06 · Effective 2019-03-08 · 84 FR 2060
## Document
- **Document number:** 2019-01113
- **Category:** air-emissions
- **Federal Register citation:** 84 FR 2060
- **CFR reference:** 40 CFR 52
- **Publication date:** 2019-02-06
- **Effective date:** 2019-03-08
- **State:** DE
- **EPA docket:** EPA-R03-OAR-2013-0492
## Abstract

The Environmental Protection Agency (EPA) is approving the remaining portions of a state implementation plan (SIP) revision submitted by the State of Delaware. This revision addresses the infrastructure requirement for interstate transport of pollution with respect to the 2010 1-hour sulfur dioxide (SO<INF>2</INF>) national ambient air quality standard (NAAQS). This action is being taken under the Clean Air Act (CAA).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2019/02/06/2019-01113/approval-and-promulgation-of-air-quality-implementation-plans-delaware-interstate-transport)
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