Approval and Promulgation of Air Quality Implementation Plans; Mississippi; Update to Materials Incorporated by Reference

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EPA is publishing this action to provide the public with notice of the update to the Mississippi State Implementation Plan (SIP) compilation. In particular, materials submitted by Mississippi that are incorporated by reference (IBR) into the Mississippi SIP are being updated to reflect EPA-approved revisions to Mississippi's SIP that have occurred since the last update. In this action, EPA is also notifying the public of the correction of certain typographical errors.