Air Plan Approval; Missouri; Removal of Control of Emission From Solvent Cleanup Operations

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The Environmental Protection Agency (EPA) is taking final action to approve a revision to the State Implementation Plan (SIP) submitted by the State of Missouri on January 15, 2019, and supplemented by letter on July 11, 2019. In the proposal, EPA proposed removal of a rule related to the control of emissions from solvent cleanup operations in the St. Louis, Missouri area from its SIP. This removal does not have an adverse effect on air quality. The EPA's approval of this rule revision is in accordance with the requirements of the Clean Air Act (CAA).