# Delegation of National Emission Standards for Hazardous Air Pollutants for Source Categories; State of Arizona, Maricopa County Air Quality Department; State of Nevada, Nevada Division of Environmental Protection, Washoe County District Health Department
> **Rule** · Direct final rule. · Published 2010-02-26 · Effective 2010-04-27 · 75 FR 8807
## Document
- **Document number:** 2010-4079
- **Category:** air-emissions
- **Federal Register citation:** 75 FR 8807
- **CFR reference:** 40 CFR 63
- **Publication date:** 2010-02-26
- **Effective date:** 2010-04-27
- **State:** AZ
- **EPA docket:** EPA-R09-OAR-2010-0044
## Abstract

EPA is amending certain regulations to reflect the current delegation status of national emission standards for hazardous air pollutants (NESHAP) in Arizona and Nevada. Several NESHAP were delegated to the Maricopa County Air Quality Department, Nevada Division of Environmental Protection, and Washoe County District Health Department within the past 18 months. The purpose of this action is to update the listing in the Code of Federal Regulations.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2010/02/26/2010-4079/delegation-of-national-emission-standards-for-hazardous-air-pollutants-for-source-categories-state)
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