# Air Plan Approval; Arizona; Hayden and Miami Areas; Lead and Sulfur Dioxide Control Measures-Copper Smelters
> **Rule** · Final rule. · Published 2018-11-14 · Effective 2018-12-14 · 83 FR 56736
## Document
- **Document number:** 2018-24743
- **Category:** air-emissions
- **Federal Register citation:** 83 FR 56736
- **CFR reference:** 40 CFR 52
- **Publication date:** 2018-11-14
- **Effective date:** 2018-12-14
- **State:** AZ
- **EPA docket:** EPA-R09-OAR-2017-0661
## Abstract

The Environmental Protection Agency (EPA) is taking final action to approve revisions to the Arizona State Implementation Plan (SIP). These revisions concern emissions of lead and sulfur dioxide (SO<INF>2</INF>) from the copper smelter at Hayden, AZ and SO<INF>2</INF> from the copper smelter at Miami, AZ. We are approving local rules that regulate these emission sources under the Clean Air Act (CAA or the Act).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2018/11/14/2018-24743/air-plan-approval-arizona-hayden-and-miami-areas-lead-and-sulfur-dioxide-control-measures-copper)
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