Air Plan Approval; AL; VOC Definitions and Particulate Emissions

On May 19, 2017, the State of Alabama, through the Alabama Department of Environmental Management, submitted changes to the Alabama State Implementation Plan (SIP). The Environmental Protection Agency (EPA) is proposing to approve the submission that modifies the State's air quality regulations as incorporated into the SIP. Specifically, the revision pertains to definitional changes, including the modification of the definition of ``volatile organic compounds,'' correcting a typographical error, and removing control of particulate emissions and opacity limits.