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Rule2021-21188

Air Plan Approval; Illinois; National Ambient Air Quality Standards Updates; Reference and Equivalent Methods Updates

Primary source

Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.

Published
October 4, 2021
Effective
November 3, 2021

Issuing agencies

Environmental Protection Agency

Abstract

The Environmental Protection Agency (EPA) is approving several revisions to the Illinois State Implementation Plan (SIP). First, EPA is approving amendments to the Illinois SIP that incorporate by reference EPA's current national ambient air quality standard for ozone, particulate matter, lead, nitrogen dioxide, and sulfur oxides. Second, EPA is approving revisions to the Illinois SIP that incorporate by reference current Federal Reference Methods for monitoring carbon monoxide, ozone, particulate matter, lead, nitrogen dioxide, and sulfur oxides. Third, EPA is approving an amendment to the Illinois SIP that reflects a recent update to EPA's List of Designated Reference and Equivalent Methods. Lastly, EPA is approving minor revisions and corrections to the Illinois SIP.

Indexed from Federal Register on October 4, 2021.

This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.