# Approval and Promulgation of Air Quality Implementation Plans; Delaware; Control of Nitrogen Oxide Emissions From Industrial Boilers and Process Heaters at Petroleum Refineries
> **Rule** · Final rule. · Published 2010-06-04 · Effective 2010-07-06 · 75 FR 31711
## Document
- **Document number:** 2010-13377
- **Category:** air-emissions
- **Federal Register citation:** 75 FR 31711
- **CFR reference:** 40 CFR 52
- **Publication date:** 2010-06-04
- **Effective date:** 2010-07-06
- **State:** DE
- **EPA docket:** EPA-R03-OAR-2010-0039
## Abstract

EPA is approving a State Implementation Plan (SIP) revision submitted by the State of Delaware. This SIP revision consists of adding specific emission control requirements for controlling nitrogen oxide (NOx) emissions from industrial boilers. This action is being taken under the Clean Air Act (CAA).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2010/06/04/2010-13377/approval-and-promulgation-of-air-quality-implementation-plans-delaware-control-of-nitrogen-oxide)
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