# Approval and Promulgation of Air Quality Implementation Plans; Maryland; Nitrogen Oxides Allowance Allocations for 2006-2007, and Revisions to Set-Aside Requirements
> **Rule** · Direct final rule. · Published 2004-03-22 · Effective 2004-05-21 · 69 FR 13236
## Document
- **Document number:** 04-6305
- **Category:** air-emissions
- **Federal Register citation:** 69 FR 13236
- **CFR reference:** 40 CFR 52
- **Publication date:** 2004-03-22
- **Effective date:** 2004-05-21
- **State:** MD
- **EPA docket:** MD145/154-3104
## Abstract

EPA is taking direct final action to approve revisions to the Maryland State Implementation Plan (SIP). The revisions consist of the Nitrogen Oxides (NO<INF>X</INF>) allowance allocations for ozone seasons 2006 and 2007, in accordance with Maryland's approved NO<INF>X</INF> SIP Call program, and establishes a set aside pool calculated as a percentage of the state's trading budget. EPA is approving these revisions to Maryland's NO<INF>X</INF> Reduction and Trading Program in accordance with the requirements of the Clean Air Act.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2004/03/22/04-6305/approval-and-promulgation-of-air-quality-implementation-plans-maryland-nitrogen-oxides-allowance)
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