# Approval and Promulgation of Air Quality Implementation Plans; Indiana; Amendments to Lead Rules, Quemetco
> **Rule** · Direct final rule. · Published 2008-01-15 · Effective 2008-03-17 · 73 FR 2428
## Document
- **Document number:** E8-440
- **Category:** air-emissions
- **Federal Register citation:** 73 FR 2428
- **CFR reference:** 40 CFR 52
- **Publication date:** 2008-01-15
- **Effective date:** 2008-03-17
- **State:** IN
- **EPA docket:** EPA-R05-OAR-2006-0276
## Abstract

On February 7, 2002, Indiana submitted revisions to its State Implementation Plan (SIP) for lead (Pb) as part of the State's incorporation of a Federal standard for secondary lead smelters. On October 3, 2006, and November 27, 2007, Indiana supplemented its request as it pertained to Quemetco, Incorporated (Quemetco), in Marion County. The requested SIP revision replaces the Pb emission limits for Quemetco with new, stringent limits. EPA has determined that the new limits will be protective of the Pb air quality standards, and is therefore approving them.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2008/01/15/E8-440/approval-and-promulgation-of-air-quality-implementation-plans-indiana-amendments-to-lead-rules)
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