# Approval and Promulgation of Implementation Plans; Louisiana; Clean Air Interstate Rule Nitrogen Oxides Trading Programs
> **Rule** · Final rule. · Published 2007-09-28 · Effective 2007-09-28 · 72 FR 55064
## Document
- **Document number:** E7-18962
- **Category:** air-emissions
- **Federal Register citation:** 72 FR 55064
- **CFR reference:** 40 CFR 52
- **Publication date:** 2007-09-28
- **Effective date:** 2007-09-28
- **State:** LA
- **EPA docket:** EPA-R06-OAR-2007-0651
## Abstract

EPA is approving a revision to the Louisiana State Implementation Plan (SIP) submitted by the State of Louisiana on August 20, 2007, as the Louisiana Clean Air Interstate Rule (CAIR) Nitrogen Oxides (NO<INF>X</INF>) Trading Programs abbreviated SIP. The abbreviated SIP revision includes the Louisiana methodology for allocation of annual and ozone season NO<INF>X</INF> allowances. EPA has determined that the Louisiana CAIR NO<INF>X</INF> Trading Programs abbreviated SIP revision satisfies the applicable requirements of a CAIR abbreviated SIP revision. EPA is also approving revisions to the Louisiana SIP that establish administrative reporting requirements for all Louisiana CAIR programs; these revisions were submitted on September 22, 2006, as part of the Louisiana CAIR Sulfur Dioxide (SO<INF>2</INF>) Trading Program SIP. EPA has also determined that the Louisiana CAIR NO<INF>X</INF> Annual and Ozone Season Abbreviated SIP satisfies Louisiana's Clean Air Act (CAA) Section 110(a)(2)(D)(i) obligations to submit a SIP revision that contains adequate provisions to prohibit air emissions from adversely affecting another State's air quality through interstate transport. The intended effect of this action is to reduce NO<INF>X</INF> emissions from the State of Louisiana that are contributing to nonattainment of the 8-hour ozone and PM<INF>2.5</INF> National Ambient Air Quality Standards (NAAQS or standard) in downwind states. This action is being taken under section 110 of the CAA.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2007/09/28/E7-18962/approval-and-promulgation-of-implementation-plans-louisiana-clean-air-interstate-rule-nitrogen)
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