# Approval and Promulgation of Implementation Plans; Revisions to the Nevada State Implementation Plan; Definition, Emergency Episode, and Monitoring Regulations
> **Rule** · Direct final rule. · Published 2007-04-20 · Effective 2007-06-19 · 72 FR 19801
## Document
- **Document number:** E7-7546
- **Category:** air-emissions
- **Federal Register citation:** 72 FR 19801
- **CFR reference:** 40 CFR 52
- **Publication date:** 2007-04-20
- **Effective date:** 2007-06-19
- **State:** NV
- **EPA docket:** EPA-R09-OAR-2007-0197
## Abstract

EPA is taking direct final action to approve revisions to the Nevada Department of Conservation and Natural Resources portion of the Nevada State Implementation Plan (SIP). These revisions concern a definition, an emergency episode regulation, and various monitoring regulations. We are approving state provisions that regulate emission sources under the Clean Air Act as amended in 1990 (Act or CAA).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2007/04/20/E7-7546/approval-and-promulgation-of-implementation-plans-revisions-to-the-nevada-state-implementation-plan)
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