# Approval and Promulgation of Implementation Plans; Idaho: Infrastructure Requirements for the 2008 Lead National Ambient Air Quality Standards
> **Rule** · Final rule. · Published 2014-05-22 · Effective 2014-06-23 · 79 FR 29358
## Document
- **Document number:** 2014-11508
- **Category:** air-emissions
- **Federal Register citation:** 79 FR 29358
- **CFR reference:** 40 CFR 52
- **Publication date:** 2014-05-22
- **Effective date:** 2014-06-23
- **State:** ID
- **EPA docket:** EPA-R10-OAR-2012-0183, FRL-9911-09-Region-10
## Abstract

The EPA is approving the February 14, 2012, State Implementation Plan (SIP) submittal from Idaho demonstrating that the SIP meets the infrastructure requirements of the Clean Air Act (CAA) for the National Ambient Air Quality Standards (NAAQS) promulgated for lead (Pb) on October 15, 2008. The CAA requires that each state, after a new or revised NAAQS is promulgated, review their SIP to ensure that it meets the infrastructure requirements necessary to implement the new or revised NAAQS. The EPA finds that the Idaho SIP meets the CAA infrastructure requirements for the 2008 Pb NAAQS.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2014/05/22/2014-11508/approval-and-promulgation-of-implementation-plans-idaho-infrastructure-requirements-for-the-2008)
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