# National Emission Standards for Hazardous Air Pollutants: General Provisions
> **Rule** · Final rule. · Published 2006-04-20 · Effective 2006-04-20 · 71 FR 20446
## Document
- **Document number:** 06-3312
- **Category:** air-emissions
- **Federal Register citation:** 71 FR 20446
- **CFR reference:** 40 CFR 63
- **Publication date:** 2006-04-20
- **Effective date:** 2006-04-20
- **EPA docket:** EPA-HQ-OAR-2004-0094
## Abstract

This action promulgates amendments to certain aspects of startup, shutdown, and malfunction (SSM) requirements affecting sources subject to the national emission standards for hazardous air pollutants (NESHAP) in response to a July 29, 2003 petition to reconsider certain aspects of amendments to the NESHAP General Provisions published on May 30, 2003.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2006/04/20/06-3312/national-emission-standards-for-hazardous-air-pollutants-general-provisions)
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