# Approval and Promulgation of Air Quality Implementation Plans; District of Columbia; Interstate Transport Requirements for the 2010 1-Hour Sulfur Dioxide Standard
> **Rule** · Final rule. · Published 2018-04-03 · Effective 2018-05-03 · 83 FR 14175
## Document
- **Document number:** 2018-06655
- **Category:** air-emissions
- **Federal Register citation:** 83 FR 14175
- **CFR reference:** 40 CFR 52
- **Publication date:** 2018-04-03
- **Effective date:** 2018-05-03
- **State:** DC
- **EPA docket:** EPA-R03-OAR-2014-0701
## Abstract

The Environmental Protection Agency (EPA) is approving a state implementation plan (SIP) revision submitted by the District of Columbia (the District). This revision pertains to 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 standards (NAAQS). EPA is approving this revision in accordance with the requirements of the Clean Air Act (CAA).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2018/04/03/2018-06655/approval-and-promulgation-of-air-quality-implementation-plans-district-of-columbia-interstate)
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